7d0b63ed151378b84697feb5b620cc303a70ead8
[pub/USBasp.git] / LUFA / DoxygenPages / ChangeLog.txt
1 /** \file
2 *
3 * This file contains special DoxyGen information for the generation of the main page and other special
4 * documentation pages. It is not a project source file.
5 */
6
7 /** \page Page_ChangeLog Project Changelog
8 *
9 * \section Sec_ChangeLogXXXXXX Version XXXXXX
10 * <b>New:</b>
11 * - Core:
12 * - Added support for the BitWizard Multio and Big-Multio boards
13 * - Library Applications:
14 * - Modified the CDC Host demos to set a default CDC Line Encoding on enumerated devices
15 * - Added Dataflash operational checks and aborts to all projects using the Dataflash to ensure it is working correctly before use
16 *
17 * <b>Changed:</b>
18 * - Core:
19 * - Android Accessory Host property strings changed from a struct of pointer to an array to prevent unaligned access on greater than 8-bit architectures
20 * - Audio Device Class driver changed to also require the index of the Audio Control interface within the device, for SET/GET/CUR/MIN/MAX/RES property adjustments
21 * - Library Applications:
22 * - Raised the guard bits in the AVRISP-MKII clone project when in PDI and TPI to 32, to prevent communication errors on low quality connections to a target
23 *
24 * <b>Fixed:</b>
25 * - Core:
26 * - Fixed possible enumeration error if the user application selects a pipe other than the default Control pipe between the Powered and Default states of
27 * the host state machine
28 * - Fixed incorrect call to the user callback CALLBACK_Audio_Device_GetSetInterfaceProperty() in the Audio Class device driver (thanks to Tiit Ratsep)
29 * - Fixed compile error for the UC3 architecture when INTERRUPT_CONTROL_ENDPOINT is specified (thanks to Andrus Aaslaid)
30 * - Fixed compile error if LEDs_Disable() is called and BOARD=NONE is set (thanks to Sam Lin)
31 * - Library Applications:
32 * - Fixed error in the AVRISP-MKII programmer when ISP mode is used at 64KHz (thanks to Ben R. Porter)
33 *
34 * \section Sec_ChangeLog120219 Version 120219
35 * <b>New:</b>
36 * - Core:
37 * - Added support for the XMEGA A3BU Xplained board
38 * - Added support for the new B series XMEGA devices
39 * - Added support for version 2 of the Teensy boards (thanks to Christoph Redecker)
40 * - Added support for the USB2AX boards, hardware revision 1-3
41 * - Added new Android Accessory Host class driver
42 * - Added new USB_Host_GetDescriptor(), USB_Host_GetDeviceConfiguration() and USB_Host_GetInterfaceAltSetting() functions
43 * - Added new CALLBACK_Audio_Device_GetSetInterfaceProperty() callback to the Audio Device Class driver
44 * - Added new LEDs_Disable(), Buttons_Disable() and Joystick_Disable() functions to the board hardware drivers
45 * - Added support for the Micropendous family of boards (Arduino-like revisions 1 and 2, DIP, 32U2, A, 1, 2, 3 and 4)
46 * - Added INVERTED_VBUS_ENABLE_LINE and NO_AUTO_VBUS_MANAGEMENT compile time options (thanks to Opendous Inc.)
47 * - Added support for the Atmel XMEGA B1 Xplained board
48 * - Added Serial USART peripheral driver for the XMEGA architecture
49 * - Added Master Mode SPI USART peripheral driver for the XMEGA and AVR8 architectures
50 * - Added build test to verify correct compilation of as many modules as possible under as many architectures as possible under the C and C++ languages
51 * - Added build test to verify correct compilation of the USB driver when forced into single USB mode under as many architectures as possible
52 * - Library Applications:
53 * - Added User Application APIs to the CDC and DFU class bootloaders
54 * - Added INVERTED_ISP_MISO compile time option to the AVRISP-MKII clone project (thanks to Chuck Rohs)
55 * - Added new Android Accessory Host demo (thanks to Opendous Inc.)
56 *
57 * <b>Changed:</b>
58 * - Core:
59 * - When automatic PLL management mode is enabled on the U4 series AVR8 chips, the PLL is now configured for 48MHz and not
60 * a divided 96MHz, to lower power consumption and to keep the system within the datasheet specs for 3.3V operation (thanks to Scott Vitale)
61 * - Added Class, ClassDevice, ClassHost and ClassCommon to the internal class driver source filenames to prevent ambiguities
62 * - Altered the Mass Storage Host class driver so that SCSI data STALLs from the attached device can be recovered from automatically without
63 * having to reset the Mass Storage interface
64 * - USB_CONFIG_ATTR_BUSPOWERED constant renamed to USB_CONFIG_ATTR_RESERVED, as this was misnamed (thanks to NXP Semiconductors)
65 * - Reordered board name definition indexes so that a mispelled BOARD compile option will default to BOARD_USER rather than BOARD_USBKEY
66 * - Altered the HID class driver to only try to construct at maximum one packet per USB frame, to reduce CPU usage
67 * - All USB Class Driver configuration struct values are now non-const, to allow for run-time modifications if required before configuring an instance
68 * - Library Applications:
69 * - Altered the Mass Storage Host LowLevel demo so that SCSI data STALLs from the attached device can be recovered from automatically without
70 * having to reset the Mass Storage interface
71 * - Updated the AVRISP-MKII Clone programmer project to be compatible with the latest version of AVR Studio (version 5.1)
72 * - Changed the AVRISP-MKII Clone programmer project to report a fixed 3.3V VTARGET voltage on USB AVRs lacking an ADC instead of 5V to prevent
73 * warnings in AVR Studio 5.1 when programming XMEGA devices
74 * - Allow serial strings to be generated on the older AVR8 devices which do not explicitly state they contain unique values in the datasheet,
75 * as this appears to be implemented in hardware
76 *
77 * <b>Fixed:</b>
78 * - Core:
79 * - Fixed ring buffer size limited to 255 elements, instead of the intended 65535 elements.
80 * - Fixed CDC class drivers not saving and sending all 16-bits of the control line states (thanks to Matthew Swabey)
81 * - Fixed race conditions in the CDC, HID and Mass Storage class drivers when processing some control requests
82 * - Fixed misspelled HID_KEYBOARD_MODIFIER_* macros in the HID class driver (thanks to Laszlo Monda)
83 * - Fixed broken AVR32 endpoint/pipe communications when ORDERED_EP_CONFIG compile time option is not enabled (thanks to Matthias Jahr)
84 * - Fixed broken compilation for the AVR32 devices if the NO_SOF_EVENTS compile time option was not enabled (thanks to Matthias Jahr)
85 * - Fixed compiler warning on GCC with \c -wundef compile flag is used (thanks to Georg Glock)
86 * - Fixed incorrect implementation of LEDs_ToggleLEDs() for the Adafruit-U4 board (thanks to Caroline Saliman)
87 * - Fixed broken compilation of LUFA under C++ compilers when the Serial peripheral module header file is included in a C++ source file
88 * - Fixed missing semicolon in the UC3 architecture host pipe functions
89 * - Fixed failed compilation for the XMEGA architecture if USB_DEVICE_ONLY us not specified
90 * - Fixed UC3 architecture ignoring the pipe size when Pipe_ConfigurePipe() is called
91 * - Library Applications:
92 * - Added reliability patches to the AVRISP-MKII Clone project's PDI/TPI protocols (thanks to Justin Mattair)
93 * - Fixed AVRISP-MKII Clone compile warning on AVR8 U4 targets even when NO_VTARGET_DETECT is enabled
94 * - Fixed AVRISP-MKII Clone failing to start application firmware once a TPI programming session is exited
95 * - Fixed DFU class bootloader not resetting the LED pins as high impedance inputs when a software jump to the user applications is requested
96 * - Fixed AVRISP-MKII Clone timing out on long programming commands such as programming the EEPROM on an ATMEGA8 (thanks to Martin Kelling)
97 * - Fixed invalid PID value used in the TempDataLogger project host application (thanks to Anupam Pathak)
98 *
99 * \section Sec_ChangeLog111009 Version 111009
100 * <b>New:</b>
101 * - Core:
102 * - Added USE_LUFA_CONFIG_HEADER compile time option to include a LUFAConfig.h header in the user director for LUFA configuration
103 * tokens as an alternative to tokens defined in the project makefile
104 * - Added new USB_Host_SetInterfaceAltSetting() convenience function for the selection of an interface's alternative setting
105 * - Added Audio class control request definitions
106 * - Added new CALLBACK_Audio_Device_GetSetEndpointProperty() callback to the Audio Device Class driver to allow for endpoint control manipulations
107 * such as data sample rates
108 * - Added support for the Audio class GET STATUS request in the Audio Device Class driver so that it is correctly ACKed when sent by the host
109 * - Added new EVENT_Audio_Device_StreamStartStop() event to the Audio Device Class driver to detect stream start/stop events
110 * - Added board driver support for the Busware TUL board
111 * - Added board hardware driver support for the EVK1100 board
112 * - Added board hardware driver support for the EVK1104 board
113 * - Added new Host mode Audio Class driver
114 * - Added new SPI_GetCurrentMode() function to the SPI peripheral driver
115 * - Added RingBuffer_GetFreeCount() function to the Ring Buffer driver
116 * - Added new HID_Host_SetIdlePeriod() function to the HID Host Class driver
117 * - Added new USB_Host_ConfigurationNumber global variable to indicate the selected configuration in an attached device
118 * - Added new USB_Host_GetDeviceStatus() function to the host standard request function set
119 * - Added AVR USB XMEGA architecture port (currently incomplete/experimental)
120 * - Added new STRINGIFY() and STRINGIFY_EXPANDED() convenience macros
121 * - Added new JTAG_DISABLE() macro for the AVR8 architecture
122 * - Added Device Qualifier standard descriptor structure definitions USB_StdDescriptor_DeviceQualifier_t and USB_Descriptor_DeviceQualifier_t
123 * - Library Applications:
124 * - Added RNDIS device mode to the Webserver project
125 * - Added new incomplete AndroidAccessoryHost Host LowLevel demo
126 * - Added new HIDReportViewer project
127 * - Added new MediaControl project
128 * - Added new AudioInputHost Host ClassDriver demo
129 * - Added new AudioOutputHost Host ClassDriver demo
130 * - Added new AudioInputHost Host LowLevel demo
131 * - Added new AudioOutputHost Host LowLevel demo
132 * - Added new "checksource" target to all library project makefiles
133 * - Added new VTARGET_USE_INTERNAL_REF configuration option to the AVRISP-MKII clone project (thanks to Volker Bosch)
134 *
135 * <b>Changed:</b>
136 * - Core:
137 * - Altered the definition of the USB_Audio_Descriptor_Format_t descriptor so that the user is now responsible for supplying
138 * the supported audio sampling rates, to allow for multiple audio interfaces with different numbers of supported rates and/or
139 * continuous sample rates
140 * - Pipe_BoundEndpointNumber() has been renamed to Pipe_GetBoundEndpointAddress(), and now returns the correct endpoint direction
141 * as part of the endpoint address
142 * - Renamed global state variables that are specific to a certain USB mode to clearly indicate which mode the variable relates to,
143 * by changing the USB_* prefix to USB_Device_* or USB_Host_*
144 * - Removed the HOST_STATE_WaitForDeviceRemoval and HOST_STATE_Suspended host state machine states, as these are no longer required
145 * - Altered the USB_Host_SetDeviceConfiguration() function to update the global Host state machine state and the new
146 * USB_Host_ConfigurationNumber global as required
147 * - Added endian correcting code to the library USB class drivers for multiple architecture support
148 * - Removed the ENDPOINT_DESCRIPTOR_DIR_* macros, replaced by ENDPOINT_DIR_* instead
149 * - Renamed the JTAG_DEBUG_ASSERT() macro to JTAG_ASSERT()
150 * - Added variable number of axis to HID_DESCRIPTOR_JOYSTICK() for multi-axis joysticks above just X and Y
151 * - Renamed USB_Host_ClearPipeStall() to USB_Host_ClearEndpointStall() as the function works on an endpoint address within the attached device,
152 * and not a Pipe within the host
153 * - The MS_Host_ResetMSInterface() now performs a full Mass Storage reset sequence to prevent data corruption in the event of a device
154 * lock up or timeout (thanks to David Lyons)
155 * - Added endian-correction to the CDC driver's Line Encoding control request handlers.
156 * - Library Applications:
157 * - Modified the Low Level and Class Driver AudioInput and AudioOutput demos to support multiple audio sample rates
158 * - Updated all host mode demos and projects to use the EVENT_USB_Host_DeviceEnumerationComplete() event callback for device configuration
159 * instead of manual host state machine manipulations in the main application task
160 * - Changed the reports in the GenericHID device demos to control the board LEDs, to reduce user confusion over the callback routines
161 * - Added reliability patches to the AVRISP-MKII Clone project's ISP and PDI/TPI protocols (thanks to Justin Mattair)
162 *
163 * <b>Fixed:</b>
164 * - Core:
165 * - Large number of documentation and code comment corrections (thanks to Andrey from Microsin.ru)
166 * - Fixed possibility of the AVR's SPI interface being pulled out of master mode if the /SS pin is a input and pulled low (thanks
167 * to Andrey from Microsin.ru)
168 * - Fixed compile error when FIXED_CONTROL_ENDPOINT_SIZE compile time option was disabled, and a USE_*_DESCRIPTORS compile time
169 * option was not enabled on the AVR8s
170 * - Fixed lack of C++ compatibility in some internal header files causing compile errors when using LUFA in C++ projects
171 * - Fixed error in the pipe unordered allocation algorithm for the AVR8 devices breaking compatibility with some devices
172 * - Fixed USB_USBTask not being called internally in stream transfers between packets when Partial Stream Transfers are used
173 * - Fixed swapped TWI_ADDRESS_READ and TWI_ADDRESS_WRITE values
174 * - Fixed TWI_ReadPacket() not releasing the TWI bus on read completion
175 * - Fixed optimization error in the HID Parser item value USB_SetHIDReportItemInfo() and USB_GetHIDReportItemInfo() routines if the report item was
176 * \c NULL (which should be allowable according to the API)
177 * - Fixed HID Parser CALLBACK_HIDParser_FilterHIDReportItem() callback function not being passed a cacheable report item pointer
178 * - Fixed HID Parser's largest report size bit count not including the size of the last parsed report item
179 * - Fixed HID host driver's largest HID report size count corrupt when the number of report bits exceeds 255
180 * - Library Applications:
181 * - Fixed incorrect signature in the CDC and DFU class bootloaders for the ATMEGA8U2
182 * - Fixed KeyboardHost and KeyboardHostWithParser demos displaying incorrect values when numerical keys were pressed
183 * - Fixed compile errors in the incomplete BluetoothHost demo application (thanks to Timo Lindfors)
184 * - Fixed incorrect Dataflash buffer use in the DataflashManager_WriteBlocks_RAM() function of several demos/projects (thanks to Jeremy Willden)
185 * - Fixed incorrect logging interval (always 500ms longer than requested) in the TempDataLogger project
186 * - Fixed incorrect buffer size check in the USBtoSerial project (thanks to Yuri A Nikiforov)
187 * - Fixed port state table corruption in the TCP layer of the RNDIS Ethernet device demos
188 *
189 * \section Sec_ChangeLog110528 Version 110528
190 * <b>New:</b>
191 * - Core:
192 * - Added new ORDERED_EP_CONFIG compile time option to restrict endpoint/pipe configuration to ascending order
193 * in exchange for a smaller compiled program binary size
194 * - Added a new general RingBuff.h miscellaneous ring buffer library driver header
195 * - Added new GCC_FORCE_POINTER_ACCESS() macro to correct GCC's mishandling of struct pointer accesses
196 * - Added new GCC_MEMORY_BARRIER() macro to prevent instruction reordering across boundaries
197 * - Added basic driver example use code to the library documentation
198 * - Added new Endpoint_Null_Stream() and Pipe_Null_Stream() functions
199 * - Added new ADC_GET_CHANNEL_MASK() convenience macro
200 * - Added new HID report item macros (with HID_RI_ prefix) to allow for easy creation and editing of HID report descriptors
201 * - Added new HID_DESCRIPTOR_MOUSE(), HID_DESCRIPTOR_KEYBOARD(), HID_DESCRIPTOR_JOYSTICK() and HID_DESCRIPTOR_VENDOR() macros
202 * for easy automatic creation of basic USB HID device reports
203 * - Added new MAX() and MIN() convenience macros
204 * - Added new Serial_SendData() function to the Serial driver
205 * - Added board driver support for the Sparkfun ATMEGA8U2 breakout board
206 * - Added TWI baud rate prescaler and bit length parameters to the TWI_Init() function (thanks to Thomas Herlinghaus)
207 * - Internal restructuring for eventual multiple architecture ports
208 * - Added AVR32 UC3 architecture port (currently incomplete/experimental)
209 * - Added new architecture independent functions to enable, disable, save and restore the Global Interrupt Enable flags
210 * - Added new RNDIS Device Class Driver packet send and receive functions
211 * - Library Applications:
212 * - Added ability to write protect Mass Storage disk write operations from the host OS
213 * - Added new MIDIToneGenerator project
214 * - Added new KeyboardMouseMultiReport Device ClassDriver demo
215 * - Added new VirtualSerialMassStorage Device ClassDriver demo
216 * - Added HID class bootloader, compatible with a modified version of the command line Teensy loader from PJRC.com
217 * - Added LED flashing to the CDC and DFU class bootloaders to indicate when they are running
218 *
219 * <b>Changed:</b>
220 * - Core:
221 * - Unordered Endpoint/Pipe configuration is now allowed once again by default via the previous reconfig workaround
222 * - Refactored Host mode Class Driver *_Host_ConfigurePipes() routines to be more space efficient when compiled
223 * - Added new *_ENUMERROR_PipeConfigurationFailed error codes for the *_Host_ConfigurePipes() routines
224 * - The USARTStream global is now public and documented in the SerialStream module, allowing for the serial USART
225 * stream to be accessed via its handle rather than via the implicit stdout and stdin streams
226 * - The FAST_STREAM_TRANSFERS compile time option has been removed due to lack of use and low cost/benefit ratio
227 * - Altered all endpoint/pipe stream transfers so that the new BytesProcessed parameter now points to a location
228 * where the number of bytes in the transfer that have been completed can be stored (or NULL if entire transaction
229 * should be performed in one chunk)
230 * - The NO_STREAM_CALLBACKS compile time option has now been removed due to the new partial stream transfer feature
231 * - Changed over all project and demo HID report descriptors to use the new HID report item macros
232 * - Moved the HIDParser.c source file to the LUFA/Drivers/USB/Class/Common/ directory from the LUFA/Drivers/USB/Class/Host/
233 * - Added support to the HID parser for extended USAGE items that contain the usage page as well as the usage index
234 * - Removed the SerialStream driver, rolled functionality into the regular Serial peripheral driver via the new
235 * Serial_CreateStream() and Serial_CreateBlockingStream() functions
236 * - Renamed the low level Serial byte send/receive functions, to be consistent with the CDC class driver byte functions
237 * - Altered the behaviour of the serial byte reception function so that is is non-blocking, and now returns a negative
238 * value if no character is received (to remain consistent with the CDC class driver byte reception routines)
239 * - Renamed the PRNT_Host_SendString(), CDC_Host_SendString() and CDC_Device_SendString() functions to *_SendData(), and
240 * added new versions of the *_SendString() routines that expect a null terminated string instead
241 * - Renamed all driver termination *_ShutDown() functions to the more logical name *_Disable()
242 * - Reduced latency for executing the Start-Of-Frame events (if enabled in the user application)
243 * - Removed Pipe_ClearErrorFlags(), pipe error flags are now automatically cleared when Pipe_ClearError() is called
244 * - Endpoint_ResetFIFO() renamed to Endpoint_ResetEndpoint(), to be consistent with the Pipe_ResetPipe() function name
245 * - Implemented on-demand PLL clock generation for the U4, U6 and U7 series USB AVRs when automatic PLL mode is specified
246 * - F_CLOCK changed to F_USB to be more descriptive, and applicable on future architecture ports
247 * - Renamed all low level Endpoint_Read_*, Endpoint_Write_* and Endpoint_Discard_* functions to use the number of bits instead of
248 * a symbolic size (Byte, Word, DWord) so that the function names are applicable and correct across all architectures
249 * - Renamed all low level Pipe_Read_*, Pipe_Write_* and Pipe_Discard_* functions to use the number of bits instead of
250 * a symbolic size (Byte, Word, DWord) so that the function names are applicable and correct across all architectures
251 * - Separated out board drivers by architecture in the library internals for better organisation
252 * - Library Applications:
253 * - Changed the XPLAINBridge software UART to use the regular timer CTC mode instead of the alternative CTC mode
254 * via the Input Capture register, to reduce user confusion
255 * - Combined page and word ISP programming mode code in the AVRISP-MKII clone project to reduce compiled size and
256 * increase maintainability of the code
257 * - Changed over library projects to use the new general ring buffer library driver module
258 * - Added new high level TWI packet read/write commands, altered behaviour of the TWI_StartTransmission() function
259 * - Changed TempDataLogger project's DS1307 driver to simplify the function interface and prevent a possible race condition
260 * - Changed AVRISP-MKII project to use the Watchdog interrupt for command timeouts, to reduce CPU usage and free timer 0
261 * for other uses
262 * - Updated the software USART code in the XPLAIN Bridge application so that the incoming bits are sampled at their mid-point
263 * instead of starting point, to give maximum reliability (thanks to Anton Staaf)
264 *
265 * <b>Fixed:</b>
266 * - Core:
267 * - Fixed broken USBFOO board drivers due to missing BOARD_USBFOO define
268 * - Fixed HID host class driver incorrectly binding to HID devices that do not have an OUT endpoint
269 * - Fixed incorrect definition of the HID_KEYBOARD_SC_D constant in the HID class driver (thanks to Opendous Inc.)
270 * - Fixed incorrect definition of the HID_KEYBOARD_SC_RIGHT_ARROW constant in the HID class driver (thanks to Joby Taffey)
271 * - Fixed incorrect endpoint initialisation order in the several device demos (thanks to Rick Drolet)
272 * - Fixed inverted Minimus board LEDs
273 * - Fixed incorrect byte ordering in the Audio_Device_WriteSample24 function (thanks to WZab)
274 * - Fixed several functions in the Host mode Still Image Class driver returning an error code from the incorrect
275 * error code enum (thanks to Daniel Seibert)
276 * - Fixed ReportID not being removed from the feature/out report data array in the HID class driver when Report IDs are used
277 * - Fixed incorrect BUTTONS_BUTTON1 definition for the Minimus board
278 * - Fixed Still Image Host class driver exiting the descriptor search routine prematurely if the data pipes (but not event pipe)
279 * is found
280 * - Fixed missing call to Pipe_SetInfiniteINRequests() in the Pipe_ConfigurePipe() routine
281 * - Fixed Remote Wakeup broken on the AVRs due to the mechanism only operating when the SUSPI bit is set (thanks to Holger Steinhaus)
282 * - Fixed possible invalid program execution when in host mode if corrupt descriptor lengths are supplied by the attached device
283 * - Library Applications:
284 * - Fixed Benito project discarding incoming data from the USB virtual serial port when the USART is busy
285 * - Fixed broken DFU bootloader, added XPLAIN support for bootloader start when XCK jumpered to ground
286 * - Fixed broken HID_REQ_GetReport request handler in the Low Level GenericHID demo
287 * - Fixed possible lost data in the XPLAINBridge, USBtoSerial and Benito projects when the host exceeds the packet
288 * timeout period on received packets as set by USB_STREAM_TIMEOUT_MS (thanks to Justin Rajewski)
289 * - Fixed possible programming problem in the AVRISP-MKII clone project when programming specific patterns into a target
290 * memory space that is only byte (not page) addressable
291 * - Fixed errors in the incomplete Test and Measurement device demo preventing proper operation (thanks to Pavel Plotnikov)
292 * - Fixed programming errors in the AVRISP-MKII project when the programming packet is a round multiple of the endpoint bank
293 * size under avrdude (thanks to Steffan Woltjer)
294 *
295 *
296 * \section Sec_ChangeLog101122 Version 101122
297 * <b>New:</b>
298 * - Core:
299 * - Added new SCSI_ASENSE_NOT_READY_TO_READY_CHANGE constant to the Mass Storage class driver, to indicate when a previously
300 * not ready removable medium has now become ready for the host's use (thanks to Martin Degelsegger)
301 * - Moved the Pipe and Endpoint stream related code to two new USB library core source files EndpointStream.c and PipeStream.c
302 * - Added new USB_Device_GetFrameNumber() and USB_Host_GetFrameNumber() functions to retrieve the current USB frame number
303 * - Added new USB_Host_EnableSOFEvents(), USB_Host_DisableSOFEvents() and EVENT_USB_Host_StartOfFrame() for the user application
304 * handling of USB Start of Frame events while in USB Host mode
305 * - Added new PRNT_Host_BytesReceived(), PRNT_Host_ReceiveByte(), PRNT_Host_SendByte() and PRNT_Host_Flush() functions to the
306 * Print Host Class driver
307 * - Added class specific descriptor alternative struct type defines with standard USB-IF element naming
308 * - Added new project makefile template to the library and moved board driver stub files into in a new "CodeTemplates" directory
309 * - Added board hardware driver support for the Adafruit U4 breakout board
310 * - Added board hardware driver support for the Arduino Uno development board
311 * - Added board hardware driver support for the Blackcat USB JTAG board (thanks to the PSGroove team)
312 * - Added board hardware driver support for the Busware BUI development board
313 * - Added board hardware driver support for the Busware CUL V3 868MHZ radio board (thanks to Dirk Tostmann)
314 * - Added board hardware driver support for the Kernel Concepts USBFOO development board
315 * - Added board hardware driver support for the Linnix UDIP development board
316 * - Added board hardware driver support for the Olimex AVR-USB-162 development board (thanks to Steve Fawcett)
317 * - Added board hardware driver support for the Maximus board (thanks to the PSGroove team)
318 * - Added board hardware driver support for the Microsin AVR-USB162 breakout board
319 * - Added board hardware driver support for the Minimus board (thanks to the PSGroove team)
320 * - Added new NO_CLASS_DRIVER_AUTOFLUSH compile time option to disable automatic flushing of interfaces when the USB management
321 * tasks for each driver is called
322 * - Added standard keyboard HID report scan-code defines (thanks to Laszlo Monda)
323 * - Added new Pipe_GetBusyBanks(), Endpoint_GetBusyBanks() and Endpoint_AbortPendingIN() functions
324 * - Library Applications:
325 * - Added default test tone generation mode to the Device mode AudioInput demos
326 * - Added new NO_BLOCK_SUPPORT, NO_EEPROM_BYTE_SUPPORT, NO_FLASH_BYTE_SUPPORT and NO_LOCK_BYTE_WRITE_SUPPORT compile time options to the
327 * CDC class bootloader
328 * - Added new XCK_RESCUE_CLOCK_ENABLE compile time option to the AVRISP-MKII clone programmer project (thanks to Tom Light)
329 *
330 * <b>Changed:</b>
331 * - Core:
332 * - Removed complicated logic for the Endpoint_ConfigureEndpoint() function to use inlined or function called versions
333 * depending of if the given bank size is a compile time constant, as the compiler does a better job of optimizing
334 * with basic code
335 * - Changed the signature of the CALLBACK_USB_GetDescriptor() callback function so that the descriptor pointer is const, to remove
336 * the need for extra casting inside the callback (thanks to Jonathan Kollasch)
337 * - Reduced HOST_DEVICE_SETTLE_DELAY_MS to 1000ms down from 1500ms to improve device compatibility while in USB Host mode
338 * - Removed the EVENT_USB_InitFailure() event, not specifying a USB mode correctly now defaults to UID selection mode
339 * - Renamed and moved class driver common constant definitions to make the naming scheme more uniform
340 * - Moved the USB mode specifier constants into a new enum, so that they are semantically related to one another
341 * - Renamed ENDPOINT_DOUBLEBANK_SUPPORTED() to ENDPOINT_BANKS_SUPPORTED() and changed it to return the maximum number of supported banks for
342 * the given endpoint
343 * - Better algorithm to extract and convert the internal device serial number into a string descriptor (if present)
344 * - All USB class drivers are now automatically included when LUFA/Drivers/USB.h is included, and no longer need to be separately included
345 * - The MIDI class drivers now automatically flushes the MIDI interface when the MIDI class driver's USBTask() function is called
346 * - Renamed the EVENT_USB_Device_UnhandledControlRequest() event to EVENT_USB_Device_ControlRequest() as it is now fired before the library
347 * request handlers, not afterwards
348 * - Library Applications:
349 * - Changed over all device demos to use a clearer algorithm for the configuring of the application's endpoints
350 * - Added missing DataflashManager_CheckDataflashOperation() function to the MassStorageKeyboard demo, removed redundant
351 * SCSI_Codes.h file as these values are part of the MassStorage Class Driver
352 * - Added compile time error to the AVRISP-MKII project when built for the U4 chips, as the default VTARGET detection ADC channel
353 * does not exist on these chips (thanks to Marco)
354 * - Changed all Device mode LowLevel demos and Device Class drivers so that the control request is acknowledged and any data
355 * transferred as quickly as possible without any processing in between sections, so that long callbacks or event handlers will
356 * not break communications with the host by exceeding the maximum control request stage timeout period
357 * - Changed over all demos, drivers and internal functions to use the current frame number over the Start of Frame flag where possible
358 * to free up the Start of Frame flag for interrupt use in the user application
359 * - All project makefiles now correctly clean intermediate build files from assembly and C++ sources (thanks to Daniel Czigany)
360 * - Changed default value for the reset polarity parameter in the AVRISP-MKII project so that it defaults to active low drive
361 * - Changed configuration descriptor parser for all host mode projects and class drivers to ensure better compatibility with devices
362 * - All LowLevel demos changed to use the constants and types defined in the USB class drivers
363 * - Changed AudioInput and AudioOutput demos to reload the next sample via an interrupt rather than polling the sample timer
364 * - Rescue clock of the AVRISP-MKII moved to the AVR's OCR1A pin, so that the clock can be generated at all times
365 * - Changed ClassDriver MIDI demos to process all incoming events in a loop until the bank becomes empty rather than one at a time
366 * - Changed LowLevel MIDI demos to only clear the incoming event bank once it has become empty to support packed event packets
367 *
368 * <b>Fixed:</b>
369 * - Core:
370 * - Fixed USB_GetHIDReportItemInfo() function modifying the given report item's data when the report item does not exist
371 * within the supplied report of a multiple report HID device
372 * - Fixed critical pipe/endpoint memory allocation issue where the bank memory address space could be silently overlapped
373 * in the USB controller if the endpoints or pipes were allocated in anything other than ascending order (thanks to Martin Degelsegger)
374 * - Added LEDs_ToggleLEDs() function to several board LED drivers which were missing it (thanks to Andrei Krainev)
375 * - Fixed SET FEATURE and CLEAR FEATURE control requests directed at an unconfigured endpoint causing request timeouts
376 * - Fixed USB_Host_ClearPipeStall() incorrectly determining the endpoint direction from the currently selected pipe
377 * - Fixed JTAG_DEBUG_POINT() and JTAG_DEBUG_BREAK() macros not compiling under pure C99 standards mode
378 * - Fixed endpoint selection within the CALLBACK_HID_Device_CreateHIDReport() callback function causing broken GET REPORT requests
379 * - Fixed incorrect command name for EEPROM memory programming in the makefile dfu-ee target
380 * - Fixed incorrect LEDs_ChangeLEDs() function in the Benito board LED driver
381 * - Fixed incorrect USB_DeviceState value when unconfiguring the device without an address set
382 * - Fixed SPI driver not explicitly setting /SS and MISO pins as inputs when SPI_Init() is called
383 * - Fixed random enumeration failure while in device mode due to interrupts causing the Set Address request to exceed maximum timings
384 * - Fixed MIDI_Host_Flush() not aborting early when the specified MIDI host interface was not configured
385 * - Fixed MIDI class driver send routines silently discarding packets if the endpoint or pipe is busy (thanks to Robin Green)
386 * - Library Applications:
387 * - Fixed MassStorage based demos and projects resetting the SCSI sense values before the command is executed, leading to
388 * missed SCSI sense values when the host retrieves the sense key (thanks to Martin Degelsegger)
389 * - Fixed USBtoSerial and Benito project SetLineEncoding calls failing if the USART is busy, due to the RX ISR delaying the control
390 * request handler
391 * - Fixed LowLevel PrinterHost demo not sending control requests to the attached printer with the correct printer interface wIndex value
392 * - Fixed incorrect signature reported in the CDC class bootloader for the ATMEGA32U2
393 * - Fixed BootloaderCDC project failing on some operating systems due to removed Line Encoding options (thanks to Alexey Belyaev)
394 * - Fixed broken FLASH/EEPROM programming in the AVRISP-MKII clone project when writing in non-paged mode and the polling byte cannot be used
395 * - Fixed ISR definition conflict in the XPLAIN bridge between the software UART and the AVRISP-MKII ISP modules
396 * - Fixed USBtoSerial and XPLAINBridge demos discarding data from the PC if the send buffer becomes full
397 * - Fixed broken input in the MagStripe reader project due to an incorrect HID report descriptor
398 * - Fixed incorrect PollingIntervalMS values in the demo/project/bootloader endpoint descriptors (thanks to MCS Electronics)
399 * - Fixed AVRISP-MKII clone project not starting the target's program automatically after exiting TPI programming mode
400 *
401 *
402 * \section Sec_ChangeLog100807 Version 100807
403 * <b>New:</b>
404 * - Added new ADC_DisableChannel() function (thanks to Mich Davis)
405 * - Added new VTARGET_REF_VOLTS and VTARGET_SCALE_FACTOR compile time defines to the AVRISP-MKII programmer project to set
406 * the VTARGET reference voltage and scale factor
407 * - Added new pgm_read_ptr() macro to Common.h for reading of pointers out of flash memory space
408 * - Added new SWAPENDIAN_16() and SWAPENDIAN_32() macros to Common.h for statically initialized variables at compile time
409 * - Added new Drivers/USB/LowLevel/Device.c file to house Device mode specific functions that are more complicated than simple macros
410 * - Added new AVRStudio 4 project files for all library demos, projects and bootloaders
411 * - Added ability to set the serial baud rate via the user's terminal in the XPLAINBridge project
412 * - Added new LUFA module variables for the different source modules in the core library makefile to simplify project makefiles
413 * - Added start of a new Test and Measurement class demo (thanks to Peter Lawrence)
414 * - Added new SPI_ORDER_* data order masks to the SPI peripheral driver
415 * - Added support to the AVRISP-MKII project for ISP speeds slower than 125KHz via a new software SPI driver
416 * - Added support for the new button/LED on the latest model USBTINY-MKII
417 *
418 * <b>Changed:</b>
419 * - The RingBuff library code has been replaced in the XPLAINBridge, Benito and USBtoSerial projects with an ultra lightweight
420 * ring buffer to help improve the reliability of the projects
421 * - The EEPROM stream read/write functions now use eeprom_update_byte() instead of eeprom_write_byte(), so that only
422 * changed bytes are written to EEPROM to preserve its lifespan
423 * - Changed over the AVRISP-MKII and TemperatureDataLogger projects to use eeprom_update_byte() when writing non-volatile
424 * parameters to EEPROM to preserve its lifespan
425 * - Removed unused line encoding data and control requests from the CDC Bootloader code, to save space
426 * - Renamed SERIAL_STREAM_ASSERT() macro to STDOUT_ASSERT()
427 * - The USB_Device_IsRemoteWakeupSent() and USB_Device_IsUSBSuspended() macros have been deleted, as they are now obsolete
428 * - Rewrote the implementation of the SwapEndian_16() and SwapEndian_32() functions so that they compile down in most instances to
429 * minimal loads and stores rather than complicated shifts
430 * - The software UART in the XPLAINBridge has been largely altered to try to improve upon its performance and reliability
431 * - The USBtoSerial and Benito projects now flushes received data via a flush timer, so that several bytes can be transmitted at once
432 * - Removed the automated checking of event names in the demo, project and bootloader makefiles due to inconsistencies between the
433 * behaviour of the command line tools used to perform the check on each platform
434 * - Internal USB driver source files renamed and moved to ease future possible architecture ports
435 * - All internal pseudo-function macros have been converted to true inline functions for type-safety and readability
436 * - Changed LED indicator masks for the AVRISP-MKII project, so that there are defined roles for each LED
437 * - Altered the CDC Device and Host Class drivers' receive byte routines, so that no data is indicated by the function returning a
438 * negative value (thanks to Andreas Paulin)
439 * - Added auto flushing of OUT data to the CDC Host Class driver's USBTask function to automatically flush the send pipe buffer
440 *
441 * <b>Fixed:</b>
442 * - Fixed AVRISP project sending a LOAD EXTENDED ADDRESS command to 128KB AVRs after programming or reading from
443 * the last page of FLASH (thanks to Gerard Sexton)
444 * - Fixed AVRISP project not sending a full erase-and-write EEPROM command to XMEGA targets when writing to the EEPROM
445 * instead of the split write-only command (thanks to Tim Margush)
446 * - Fixed RNDISEthernet demos crashing when calculating checksums for Ethernet/TCP packets of more than ~500 bytes due to
447 * an overflow in the checksum calculation loop (thanks to Kevin Malec)
448 * - Fixed XPLAINBridge project not correctly reading the XMEGA's supply voltage when reporting back to the host
449 * - Fixed incorrect signature for the ATMEGA32U2 in the DFU bootloader (thanks to Axel Rohde)
450 * - Fixed internal device serial not being accessible on the ATMEGAXXU2 AVRs (thanks to Axel Rohde)
451 * - Fixed void pointer arithmetic in ConfigDescriptor.h breaking C++ compatibility (thanks to Michael Hennebry)
452 * - Fixed broken PDI EEPROM Section Erase functionality in the AVRISP-MKII project
453 * - Fixed USB_Device_SendRemoteWakeup() not working when the USB clock was frozen during USB bus suspend (thanks to Brian Dickman)
454 * - Fixed occasional lockup of the AVRISP project due to the timeout extension code incorrectly extending the timeout in
455 * PDI and TPI programming modes infinitely
456 * - Fixed HID device class driver still using PrevReportINBuffer for GetReport control requests even when it has been
457 * set to NULL by the user application (thanks to Axel Rohde)
458 * - Fixed MIDI_Device_SendEventPacket() not correctly waiting for the endpoint to become ready (thanks to Robin Green)
459 * - Fixed Benito and USBtoSerial projects not turning off the USART before reconfiguring it, which could cause incorrect
460 * operation to occur (thanks to Bob Paddock)
461 * - Fixed Serial peripheral driver not turning off the USART before reconfiguring it, which would cause incorrect operation
462 * to occur (thanks to Bob Paddock)
463 * - Fixed software application start command broken in the DFU class bootloader when dfu-programmer is used due to application
464 * start address corruption
465 *
466 *
467 * \section Sec_ChangeLog100513 Version 100513
468 * <b>New:</b>
469 * - Added incomplete MIDIToneGenerator project
470 * - Added new Relay Controller Board project (thanks to OBinou)
471 * - Added board hardware driver support for the Teensy, USBTINY MKII, Benito and JM-DB-U2 lines of third party USB AVR boards
472 * - Added new ATTR_NO_INIT variable attribute for global variables that should not be automatically cleared on startup
473 * - Added new ENDPOINT_*_BusSuspended error code to the Endpoint function, so that the stream functions early-abort if the bus
474 * is suspended before or during a transfer
475 * - Added new EVENT_CDC_Device_BreakSent() event and CDC_Host_SendBreak() function to the Device and Host CDC Class drivers
476 * - Added ReportType parameter to the HID device class driver CALLBACK_HID_Device_ProcessHIDReport() function so that FEATURE
477 * reports from the host to the device can be correctly processed
478 * - Added ReportType parameter to the HID host class driver HID_Host_SendReportByID() function so that FEATURE reports can be
479 * issued to the attached device
480 *
481 * <b>Changed:</b>
482 * - AVRISP programmer project now has a more robust timeout system
483 * - Added a timeout value to the TWI_StartTransmission() function, within which the addressed device must respond
484 * - Webserver project now uses the board LEDs to indicate the current IP configuration state
485 * - Added ENABLE_TELNET_SERVER compile time option to the Webserver project to disable the TELNET server if desired
486 * - Increased throughput of the USBtoSerial demo on systems that send multiple bytes per packet (thanks to Opendous Inc.)
487 * - Double bank CDC endpoints in the XPLAIN Bridge project, re-enable JTAG once the mode selection pin has been sampled.
488 * - Standardized the naming scheme given to configuration descriptor sub-elements in the Device mode demos, bootloaders
489 * and projects
490 * - All Class Driver Host mode demos now correctly set the board LEDs to READY once the enumeration process has completed
491 * - Added LIBUSB_FILTERDRV_COMPAT compile time option to the AVRISP programmer project to make the code compatible with Windows
492 * builds of avrdude at the expense of AVRStudio compatibility
493 * - Removed two-step endpoint/pipe bank clear and switch sequence for smaller, faster endpoint/pipe code
494 * - The USB_Init() function no longer calls sei() - the user is now responsible for enabling interrupts when they are ready
495 * for them to be enabled (thanks to Andrei Krainev)
496 * - The Audio_Device_IsSampleReceived() and Audio_Device_IsReadyForNextSample() functions are now inline, to reduce overhead
497 * - Removed the cast to uint16_t on the set baud rate in the USBtoSerial project, so that the higher >1M baud rates can be
498 * selected (thanks to Steffan Woltjer)
499 * - Removed software PDI and TPI emulation from the AVRISP-MKII clone project as it was very buggy and slow - PDI and TPI must
500 * now be implemented via separate programming headers
501 * - The CDC class bootloader now uses a watchdog reset rather than a soft-reset when exited to ensure that all hardware is
502 * properly reset to their defaults
503 * - Device mode class driver callbacks are now fired before the control request status stage is sent to prevent the host from
504 * timing out if another request is immediately fired and the device has a lengthy callback routine
505 * - The TeensyHID bootloader has been removed, per request from Paul at PJRC
506 * - The LIBUSB_FILTERDRV_COMPAT compile time option in the XPLAINBridge and AVRISP-MKII projects has been renamed
507 * LIBUSB_DRIVER_COMPAT, as it applies to all software on all platforms using the libUSB driver
508 *
509 * <b>Fixed:</b>
510 * - Fixed possible device lockup when INTERRUPT_CONTROL_ENDPOINT is enabled and the control endpoint is not properly
511 * selected when the ISR completes
512 * - Fixed AVRISP-MKII clone project not correctly issuing LOAD EXTENDED ADDRESS commands when the extended address
513 * boundary is crossed during programming or read back (thanks to Gerard Sexton)
514 * - Fixed warnings when building the AVRISP-MKII clone project with the ENABLE_XPROG_PROTOCOL compile time option disabled
515 * - Fixed software PDI/TPI programming mode in the AVRISP project not correctly toggling just the clock pin
516 * - Fixed TWI_StartTransmission() corrupting the contents of the GPIOR0 register
517 * - Fixed TWI driver not aborting when faced with no response after attempting to address a device on the bus
518 * - Fixed ADC routines not correctly returning the last result when multiple channels were read
519 * - Fixed ADC routines failing to read the extended channels (Channels 8 to 13, Internal Temperature Sensor) on the
520 * U4 series USB AVR parts
521 * - Fixed LowLevel MassStorage demo broken on the U2 series USB AVRs due to unsupported double-banked endpoint modes used
522 * - Fixed compilation error in the AudioInput demos when MICROPHONE_BIASED_TO_HALF_RAIL is defined (thanks to C. Scott Ananian)
523 * - Fixed incorrect definition of HID_ALIGN_DATA() causing incorrect HID report item data alignment
524 * - Fixed Still Image Host class driver not resetting the transaction ID when a new session is opened, fixed driver not sending
525 * a valid session ID to the device
526 * - Removed invalid dfu and flip related targets from the bootloaders - bootloaders can only be replaced with an external programmer
527 * - Fixed Set/Clear Feature requests directed to a non-configured endpoint not returning a stall to the host
528 * - Fixed HID Device Class Driver not allocating a temporary buffer when the host requests a report via the control endpoint and the
529 * user has set the PrevReportINBuffer driver configuration element to NULL (thanks to Lars Noschinski)
530 * - Fixed device state not being reset to DEVICE_STATE_Default if the host sets a 0x00 device address
531 * - Fixed device not stalling configuration requests before the device's address has been set
532 * - Fixed possibility of internal signature retrieval being corrupted if an interrupt occurs during a signature byte
533 * read (thanks to Andrei Krainev)
534 * - Fixed device state not being reset back to the default state if the host sets the address to 0
535 * - Fixed Set Configuration requests not being stalled until the host has set the device's address
536 * - Fixed Host mode HID class driver not sending the correct report type when HID_Host_SendReportByID() was called and the
537 * HID_HOST_BOOT_PROTOCOL_ONLY compile time option is set
538 * - Fixed INTERRUPT_CONTROL_ENDPOINT compile time option preventing other interrupts from occurring while the control endpoint
539 * request is being processed, causing possible lockups if a USB interrupt occurs during a transfer
540 * - Remove incorrect Abstract Call Management class specific descriptor from the CDC demos, bootloaders and projects
541 *
542 *
543 * \section Sec_ChangeLog100219 Version 100219
544 *
545 * <b>New:</b>
546 * - Added TPI programming support for 6-pin ATTINY devices to the AVRISP programmer project (thanks to Tom Light)
547 * - Added command timeout counter to the AVRISP project so that the device no longer freezes when incorrectly connected
548 * to a target
549 * - Added new TemperatureDataLogger application, a USB data logger which writes to the device's dataflash and appears to
550 * the host as a standard Mass Storage device when inserted
551 * - Added MIDI event packing support to the MIDI Device and Host mode Class drivers, allowing for multiple MIDI events to
552 * sent or received in packed form in a single USB packet
553 * - Added new MIDI send buffer flush routines to the MIDI Device and Host mode Class drivers, to flush packed events
554 * - Added master mode hardware TWI driver for easy TWI peripheral control
555 * - Added ADC MUX masks for the standard ADC input channels on all AVR models with an ADC, altered demos to use these masks
556 * as on some models, the channel number is not identical to its single-ended ADC MUX mask
557 * - New Webserver project, a RNDIS host USB webserver using the open source uIP TCP/IP network stack and FatFS library
558 * - New BOARD value option BOARD_NONE (equivalent to not specifying BOARD) which will remove all board hardware drivers which
559 * do not adversely affect the code operation (currently only the LEDs driver)
560 * - Added keyboard modifier masks (HID_KEYBOARD_MODIFER_*) and LED report masks (KEYBOARD_LED_*) to the HID class driver and
561 * Keyboard demos
562 * - Added .5MHz recovery clock to the AVRISP programmer project when in ISP programming mode to correct mis-set fuses
563 *
564 * <b>Changed:</b>
565 * - Slowed down software USART carried PDI programming in the AVRISP project to prevent transmission errors
566 * - Renamed the AVRISP project folder to AVRISP-MKII to reduce confusion
567 * - Renamed the RESET_LINE_* makefile tokens in the AVRISP MKII Project to AUX_LINE_*, as they are not always used for target
568 * reset
569 * - Changed over the MassStorageKeyboard Class driver device demo to use Start of Frame events rather than a timer to keep track
570 * of elapsed milliseconds
571 * - Inlined currently unused (but standardized) maintenance functions in the Device and Host Class drivers to save space
572 * - The XPLAINBridge project now selects between a USB to Serial bridge and a PDI programmer on startup, reading the JTAG port's
573 * TDI pin to determine which mode to use
574 * - Removed the stream example code from the Low Level VirtualSerial demos, as they were buggy and only served to add clutter
575 *
576 * <b>Fixed:</b>
577 * - Fixed AVRISP project not able to enter programming mode when ISP protocol is used
578 * - Fixed AVRISP PDI race condition where the guard time between direction changes could be interpreted as a start bit
579 * - Fixed ADC_IsReadingComplete() returning an inverted result
580 * - Fixed blocking CDC streams not aborting when the host is disconnected
581 * - Fixed XPLAIN board Dataflash driver broken due to incorrect preprocessor commands
582 * - Fixed inverted XPLAIN LED driver output (LED turned on when it was supposed to be turned off, and vice-versa)
583 * - Fixed Class Driver struct interface numbers in the KeyboardMouse and VirtualSerialMouse demos (thanks to Renaud Cerrato)
584 * - Fixed invalid USB controller PLL prescaler values for the ATMEGAxxU2 controllers
585 * - Fixed lack of support for the ATMEGA32U2 in the DFU and CDC class bootloaders
586 * - Fixed Benito project not resetting the target AVR automatically when programming has completed
587 * - Fixed DFU bootloader programming not discarding the correct number of filler bytes from the host when non-aligned programming
588 * ranges are specified (thanks to Thomas Bleeker)
589 * - Fixed CDC and RNDIS host demos and class drivers - bidirectional endpoints should use two separate pipes, not one half-duplex pipe
590 * - Fixed Pipe_IsEndpointBound() not taking the endpoint's direction into account
591 * - Fixed EEPROM and FLASH ISP programming in the AVRISP project
592 * - Fixed incorrect values of USB_CONFIG_ATTR_SELFPOWERED and USB_CONFIG_ATTR_REMOTEWAKEUP tokens (thanks to Claus Christensen)
593 * - Fixed SerialStream driver blocking while waiting for characters to be received instead of returning EOF
594 * - Fixed SerialStream driver not setting stdin to the created serial stream (thanks to Mike Alexander)
595 * - Fixed USB_GetHIDReportSize() returning the number of bits in the specified report instead of bytes
596 * - Fixed AVRISP project not extending the command delay after each successful page/word/byte program
597 * - Fixed accuracy of the SERIAL_UBBRVAL() and SERIAL_2X_UBBRVAL() macros for higher baud rates (thanks to Renaud Cerrato)
598 *
599 *
600 * \section Sec_ChangeLog091223 Version 091223
601 *
602 * <b>New:</b>
603 * - Added activity LED indicators to the AVRISP project to indicate when the device is busy processing a command
604 * - The USB target family and allowable USB mode tokens are now public and documented (USB_CAN_BE_*, USB_SERIES_*_AVR)
605 * - Added new XPLAIN USB to Serial Bridge project (thanks to John Steggall for initial proof-of-concept, David Prentice
606 * and Peter Danneger for revised software USART code)
607 * - Added new RNDIS Ethernet Host LowLevel demo
608 * - Added new RNDIS Ethernet Host Class Driver
609 * - Added new RNDIS Ethernet Host ClassDriver demo
610 * - Added CDC_Host_Flush() function to the CDC Host Class driver to flush sent data to the attached device
611 * - Added PDI programming support for XMEGA devices to the AVRISP programmer project (thanks to Justin Mattair)
612 * - Added support for the XPLAIN board Dataflash, with new XPLAIN_REV1 board target for the different dataflash used
613 * on the first revision boards compared to the one mounted on later revisions
614 * - Added new HID_ALIGN_DATA() macro to return the pre-retrieved value of a HID report item, left-aligned to a given datatype
615 * - Added new PreviousValue to the HID Report Parser report item structure, for easy monitoring of previous report item values
616 * - Added new EVK527 board target
617 * - Added new USB_Host_GetDeviceStringDescriptor() convenience function
618 * - Added new LEDNotification project to the library, to give a visual LED notification on new events from the host
619 * - Added new NO_DEVICE_REMOTE_WAKEUP and NO_DEVICE_SELF_POWER compile time options
620 *
621 * <b>Changed:</b>
622 * - Removed code in the Keyboard demos to send zeroed reports between two reports with differing numbers of key codes
623 * as this relied on non-standard OS driver behaviour to repeat key groups
624 * - The SCSI_Request_Sense_Response_t and SCSI_Inquiry_Response_t type defines are now part of the Mass Storage Class
625 * driver common defines, rather than being defined in the Host mode Class driver section only
626 * - The USB_MODE_HOST token is now defined even when host mode is not available
627 * - The CALLBACK_HID_Device_CreateHIDReport() HID Device Class driver callback now has a new ReportType parameter to
628 * indicate the report type to generate
629 * - All Class Drivers now return false or the "DeviceDisconnected" error code of their respective error enums when a function
630 * is called when no host/device is connected where possible
631 * - The HOST_SENDCONTROL_DeviceDisconnect enum value has been renamed to HOST_SENDCONTROL_DeviceDisconnected to be in line
632 * with the rest of the library error codes
633 * - Make MIDI device demos also turn off the on board LEDs if MIDI Note On messages are sent with a velocity of zero,
634 * which some devices use instead of Note Off messages (thanks to Robin Green)
635 * - The CDC demos are now named "VirtualSerial" instead to indicate the demos' function rather than its implemented USB class,
636 * to reduce confusion and to be in line with the rest of the LUFA demos
637 * - The SImage_Host_SendBlockHeader() and SImage_Host_ReceiveBlockHeader() Still Image Host Class driver functions are now public
638 *
639 * <b>Fixed:</b>
640 * - Added missing CDC_Host_CreateBlockingStream() function code to the CDC Host Class driver
641 * - Fixed incorrect values for REPORT_ITEM_TYPE_* enum values causing corrupt data in the HID Host Parser
642 * - Fixed misnamed SI_Host_USBTask() and SI_Host_ConfigurePipes() functions
643 * - Fixed broken USB_GetNextDescriptor() function causing the descriptor to jump ahead double the expected amount
644 * - Fixed Pipe_IsEndpointBound() not masking the given Endpoint Address against PIPE_EPNUM_MASK
645 * - Fixed host state machine not enabling Auto VBUS mode when HOST_DEVICE_SETTLE_DELAY_MS is set to zero
646 * - Fixed misnamed Pipe_SetPipeToken() macro for setting a pipe's direction
647 * - Fixed CDCHost failing on devices with bidirectional endpoints
648 * - Fixed USB driver failing to define the PLL prescaler mask for the ATMEGA8U2 and ATMEGA16U2
649 * - Fixed HID Parser not distributing the Usage Min and Usage Max values across an array of report items
650 * - Fixed Mass Storage Host Class driver and Low Level demo not clearing the error condition if an attached device returns a
651 * STALL to a GET MAX LUN request (thanks to Martin Luxen)
652 * - Fixed TeensyHID bootloader not properly shutting down the USB interface to trigger a disconnection on the host before resetting
653 * - Fixed MassStorageHost Class driver demo not having USB_STREAM_TIMEOUT_MS compile time option set properly to prevent slow
654 * devices from timing out the data pipes
655 * - Fixed the definition of the Endpoint_BytesInEndpoint() macro for the U4 series AVR parts
656 * - Fixed MIDI host Class driver MIDI_Host_SendEventPacket() routine not properly checking for Pipe ready before writing
657 * - Fixed use of deprecated struct initializers, removed library unused parameter warnings when compiled with -Wextra enabled
658 * - Fixed Still Image Host Class driver truncating the PIMA response code (thanks to Daniel Seibert)
659 * - Fixed USB_CurrentMode not being reset to USB_MODE_NONE when the USB interface is shut down and both Host and Device modes can be
660 * used (thanks to Daniel Levy)
661 * - Fixed TeensyHID bootloader not enumerating to the host correctly (thanks to Clint Fisher)
662 * - Fixed AVRISP project timeouts not checking for the correct timeout period (thanks to Carl Ott)
663 * - Fixed STK525 Dataflash driver using incorrect bit-shifting for Dataflash addresses (thanks to Tim Mitchell)
664 *
665 *
666 * \section Sec_ChangeLog091122 Version 091122
667 *
668 * <b>New:</b>
669 * - Added new Dual Role Keyboard/Mouse demo
670 * - Added new HID_HOST_BOOT_PROTOCOL_ONLY compile time token to reduce the size of the HID Host Class driver when
671 * Report protocol is not needed
672 * - Added new MIDI LowLevel and ClassDriver Host demo, add new MIDI Host Class driver
673 * - Added new CDC/Mouse ClassDriver device demo
674 * - Added new Joystick Host ClassDriver and LowLevel demos
675 * - Added new Printer Host mode Class driver
676 * - Added new Printer Host mode ClassDriver demo
677 * - Added optional support for double banked endpoints and pipes in the Device and Host mode Class drivers
678 * - Added new stream creation function to the CDC Class drivers, to easily make standard I/O streams from CDC Class driver instances
679 *
680 * <b>Changed:</b>
681 * - Removed mostly useless "TestApp" demo, as it was mainly useful only for checking for syntax errors in the library
682 * - MIDI device demos now receive MIDI events from the host and display note ON messages via the board LEDs
683 * - Cleanups to the Device mode Mass Storage demo application SCSI routines
684 * - Changed Audio Class driver sample read/write functions to be inline, to reduce the number of cycles needed to transfer
685 * samples to and from the device (allowing more time for sample processing and output)
686 * - Audio class Device mode demos now work at both 16MHz and 8MHz, rather than just at 8MHz
687 * - The previous USBtoSerial demo has been moved into the projects directory, as it was just a modified CDC demo
688 * - The Endpoint/Pipe functions now use the const qualifier on the input buffer
689 * - Changed the CALLBACK_HIDParser_FilterHIDReportItem() callback to pass a HID_ReportItem_t rather than just the current
690 * item's attributes, to expose more information on the item (including it's type, collection path, etc.)
691 * - Changed MouseHostWithParser demos to check that the report items have a Mouse usage collection as a parent at some point,
692 * to prevent Joysticks from enumerating with the demo
693 * - Corrected the name of the misnamed USB_GetDeviceConfigDescriptor() function to USB_Host_GetDeviceConfigDescriptor().
694 * - Keyboard LowLevel/ClassDriver demos now support multiple simultaneous key presses (up to 6) per report
695 *
696 * <b>Fixed:</b>
697 * - Fixed PrinterHost demo returning invalid Device ID data when the attached device does not have a
698 * device ID (thanks to Andrei Krainev)
699 * - Changed LUFA_VERSION_INTEGER define to use BCD values, to make comparisons easier
700 * - Fixed issue in the HID Host class driver's HID_Host_SendReportByID() routine using the incorrect mode (control/pipe)
701 * to send report to the attached device
702 * - Fixed ClassDriver AudioOutput device demo not selecting an audio output mode
703 * - Fixed incorrect SampleFrequencyType value in the AudioInput and AudioOutput ClassDriver demos' descriptors
704 * - Fixed incorrect event name rule in demo/project/bootloader makefiles
705 * - Fixed HID device class driver not reselecting the correct endpoint once the user callback routines have been called
706 * - Corrected HID descriptor in the Joystick Device demos - buttons should be placed outside the pointer collection
707 * - Fixed HID report parser collection paths invalid due to misplaced semicolon in the free path item search loop
708 * - Fixed HID host Class driver report send/receive report broken when issued through the control pipe
709 * - Fixed HOST_STATE_AS_GPIOR compile time option being ignored when in host mode (thanks to David Lyons)
710 * - Fixed LowLevel Keyboard demo not saving the issues report only after it has been sent to the host
711 * - Fixed Endpoint_Write_Control_Stream_* functions not sending a terminating IN when given data Length is zero
712 *
713 *
714 * \section Sec_ChangeLog090924 Version 090924
715 *
716 * <b>New:</b>
717 * - Added new host mode class drivers and matching demos to the library for rapid application development
718 * - Added flag to the HID report parser to indicate if a device has multiple reports
719 * - Added new EVENT_USB_Device_StartOfFrame() event, controlled by the new USB_Device_EnableSOFEvents() and
720 * USB_Device_DisableSOFEvents() macros to give bus-synchronized millisecond interrupts when in USB device mode
721 * - Added new Endpoint_SetEndpointDirection() macro for bidirectional endpoints
722 * - Added new AVRISP project, a LUFA powered clone of the Atmel AVRISP-MKII programmer
723 * - Added ShutDown() functions for all hardware peripheral drivers, so that peripherals can be turned off after use
724 * - Added new CDC_Device_Flush() command to the device mode CDC Class driver to flush Device->Host data
725 * - Added extra masks to the SPI driver, changed SPI_Init() so that the clock polarity and sample modes can be set
726 * - Added new callback to the HID report parser, so that the user application can filter only the items it is interested
727 * in to be stored into the HIDReportInfo structure to save RAM
728 * - Added support for the officially recommended external peripheral layout for the BUMBLEB board (thanks to Dave Fletcher)
729 * - Added new Pipe_IsFrozen() macro to determine if the currently selected pipe is frozen
730 * - Added new USB_GetHIDReportSize() function to the HID report parser to retrieve the size of a given report by its ID
731 * - Added new combined Mass Storage and Keyboard demo (thanks to Matthias Hullin)
732 *
733 * <b>Changed:</b>
734 * - SetIdle requests to the HID device driver with a 0 idle period (send changes only) now only affect the requested
735 * HID interface within the device, not all HID interfaces
736 * - Added explicit attribute masks to the device mode demos' descriptors
737 * - Added return values to the CDC and MIDI class driver transmit functions
738 * - Optimized Endpoint_Read_Word_* and Pipe_Read_Word_* macros to reduce compiled size
739 * - Added non-null function parameter pointer restrictions to USB Class drivers to improve user code reliability
740 * - Added new "Common" section to the class drivers, to hold all mode-independent definitions for clarity
741 * - Moved SCSI command/sense constants into the Mass Storage Class driver, instead of the user-code
742 * - Altered the SCSI commands in the LowLevel Mass Storage Host to save on FLASH space by reducing function calls
743 * - Changed the parameters and behaviour of the USB_GetDeviceConfigDescriptor() function so that it now performs size checks
744 * and data validations internally, to simplify user code
745 * - Changed HIDParser to only zero out important values in the Parsed HID Report Item Information structure to save cycles
746 * - The HID report parser now always processed FEATURE items - HID_ENABLE_FEATURE_PROCESSING token now has no effect
747 * - The HID report parser now always ignores constant-data items, HID_INCLUDE_CONSTANT_DATA_ITEMS token now has no effect
748 * - The Benito Programmer project now has its own unique VID/PID pair allocated from the Atmel donated LUFA VID/PID pool
749 * - Add in new invalid event hook check targets to project makefiles to produce compilation errors when invalid event names
750 * are used in a project
751 * - The HID Report Parser now gives information on the total length of each report within a HID interface
752 * - The USE_NONSTANDARD_DESCRIPTOR_NAMES compile time token has been removed - there are now separate USB_Descriptor_* and
753 * USB_StdDescriptor_* structures for both the LUFA and standardized element naming conventions so both may be used
754 *
755 * <b>Fixed:</b>
756 * - Fixed possible lockup in the CDC device class driver, when the host sends data that is a multiple of the
757 * endpoint's bank
758 * - Fixed swapped parameters in the HID state memory copy call while processing a HID PUSH item in the HID report parser
759 * - Fixed memory corruption HID report parser when too many COLLECTION or PUSH items were processed
760 * - Fixed HID report parser not resetting the FEATURE item count when a REPORT ID item is encountered
761 * - Fixed USBtoSerial demos not reading in UDR1 when the USART receives data but the USB interface is not enumerated,
762 * causing continuous USART receive interrupts
763 * - Fixed misspelled event name in the Class driver USBtoSerial demo, preventing correct operation
764 * - Fixed invalid data being returned when a GetStatus request is issued in Device mode with an unhandled data recipient
765 * - Added hardware USART receive interrupt and software buffering to the Benito project to ensure received data is not
766 * missed or corrupted
767 * - Fixed Device mode HID Class driver always sending IN packets, even when nothing to report
768 * - Fixed Device mode HID Class driver not explicitly initializing the ReportSize parameter to zero before calling callback
769 * routine, so that ignored callbacks don't cause incorrect data to be sent
770 * - Fixed StillImageHost not correctly freezing and unfreezing data pipes while waiting for a response block header
771 * - Fixed error in the PrinterHost demo preventing the full page data from being sent to the attached device (thanks to John Andrews)
772 * - Fixed CDC based demos and projects' INF driver files under 64 bit versions of Windows (thanks to Ronny Hanson, Thomas Bleeker)
773 * - Re-add in missing flip, flip-ee, dfu and dfu-ee targets to project makefiles (thanks to Opendous Inc.)
774 * - Fix allowable F_CPU values comment in project makefiles to more accurately reflect the allowable values on the USB AVRs
775 * - Fixed DFU and CDC class bootloaders on the series 2 USB AVRs, corrected invalid signatures, added support for the new
776 * ATMEGAxx2 series 2 variant AVRs to the DFU bootloader
777 * - Fixed Low Level USBtoSerial demo not storing received characters (thanks to Michael Cooper)
778 * - Fixed MIDI Device Class driver not sending/receiving MIDI packets of the correct size (thanks to Thomas Bleeker)
779 *
780 *
781 * \section Sec_ChangeLog090810 Version 090810
782 *
783 * <b>New:</b>
784 * - Added new device class drivers and matching demos to the library for rapid application development
785 * - Added new PrinterHost demo (thanks to John Andrews)
786 * - Added USB Missile Launcher project, submitted by Dave Fletcher
787 * - Added new Benito Arduino Programmer project
788 * - Added incomplete device and host mode demos for later enhancement
789 * - Updated MassStorage device block write routines to use ping-pong Dataflash buffering to increase throughput by around 30%
790 * - Error status LEDs shown when device endpoint configuration fails to complete in all demos and projects
791 * - Added new USB_Host_SetDeviceConfiguration() convenience function for easy configuration selection of devices while in USB
792 * host mode
793 * - Added new USB_Host_ClearPipeStall() convenience function to clear a stall condition on an attached device's endpoint
794 * - Added new USB_Host_GetDeviceDescriptor() convenience function to retrieve the attached device's Device descriptor
795 * - Added new Endpoint_ClearStatusStage() convenience function to assist with the status stages of control transfers
796 * - Added new USE_INTERNAL_SERIAL define for using the unique serial numbers in some AVR models as the USB device's serial number,
797 * added NO_INTERNAL_SERIAL compile time option to turn off new serial number reading code
798 * - Added new DATAFLASH_CHIP_MASK() macro to the Dataflash driver, which returns the Dataflash select mask for the given chip index
799 * - Added new HOST_STATE_WaitForDeviceRemoval host state machine state for non-blocking disabling of device communications until the
800 * device has been removed (for use when an error occurs or communications with the device have completed)
801 * - Added new FAST_STREAM_TRANSFERS compile time option for faster stream transfers via multiple bytes copied per stream loop
802 * - Added stdio stream demo code to the CDC device demos, to show how to create standard streams out of the virtual serial ports
803 * - Added new EEPROM and FLASH buffer versions of the Endpoint and Pipe stream functions
804 * - Added new USE_FLASH_DESCRIPTORS and FIXED_NUM_CONFIGURATIONS compile time options
805 * - Added support for the new ATMEGA32U2, ATMEGA16U2 and ATMEGA8U2 AVR models
806 * - Added new USB_DeviceState variable to keep track of the current Device mode USB state
807 * - Added new LEDs_ToggleLEDs() function to the LEDs driver
808 * - Added new Pipe_BoundEndpointNumber() and Pipe_IsEndpointBound() functions
809 * - Added new DEVICE_STATE_AS_GPIOR and HOST_STATE_AS_GPIOR compile time options
810 * - Added 404 Not Found errors to the webserver in the RNDIS demos to indicate invalid URLs
811 *
812 * <b>Changed:</b>
813 * - Deprecated pseudo-scheduler and removed dynamic memory allocator from the library (first no longer needed and second unused)
814 * - The device-mode CALLBACK_USB_GetDescriptor() function now has an extra parameter so that the memory space in which the requested
815 * descriptor is located can be specified. This means that descriptors can now be located in multiple memory spaces within a device.
816 * - Removed vague USB_IsConnected global - test USB_DeviceState or USB_HostState explicitly to gain previous functionality
817 * - Removed USB_IsSuspended global - test USB_DeviceState against DEVICE_STATE_Suspended instead
818 * - Extended USB_GetDeviceConfigDescriptor() routine to require the configuration number within the device to fetch
819 * - Dataflash_WaitWhileBusy() now always ensures that the dataflash is ready for the next command immediately after returning,
820 * no need to call Dataflash_ToggleSelectedChipCS() afterwards
821 * - Low level API MIDI device demo no longer blocks if a note change event is sent while the endpoint is not ready
822 * - Pipe_GetErrorFlags() now returns additional error flags for overflow and underflow errors
823 * - Pipe stream functions now automatically set the correct pipe token, so that bidirectional pipes can be used
824 * - Pipe_ConfigurePipe() now automatically defaults IN pipes to accepting infinite IN requests, this can still be changed by calling
825 * the existing Pipe_SetFiniteINRequests() function
826 * - Changed F_USB entries in project makefiles to alias to F_CPU by default, as this is the most common case
827 * - Host mode demos now use sane terminal escape codes, so that text is always readable and events/program output is visually distinguished
828 * from one another using foreground colours
829 * - Internal per-device preprocessing conditions changed to per-device series rather than per-controller group for finer-grain
830 * internal control
831 * - Interrupts are no longer disabled during the processing of Control Requests on the default endpoint while in device mode
832 * - AudioOutput demos now always output to board LEDs, regardless of output mode (removed AUDIO_OUT_LEDS project option)
833 * - Removed SINGLE_DEVICE_CONFIGURATION compile time option in favor of the new FIXED_NUM_CONFIGURATIONS option so that the exact number
834 * of device configurations can be defined statically
835 * - Removed VBUS events, as they are already exposed to the user application via the regular device connection and disconnection events
836 * - Renamed and altered existing events to properly separate out Host and Device mode events
837 * - All demos switched over from GNU99 standards mode to C99 standards mode, to reduce the dependencies on GCC-only language extensions
838 *
839 * <b>Fixed:</b>
840 * - Changed bootloaders to use FLASHEND rather than the existence of RAMPZ to determine if far FLASH pointers are needed to fix
841 * bootloaders on some of the USB AVR devices where avr-libc erroneously defines RAMPZ
842 * - Fixes to MassStorageHost for better device compatibility (increase command timeout, change MassStore_WaitForDataReceived()
843 * to only unfreeze and check one data pipe at a time) to prevent incorrect device enumerations and freezes while transferring data
844 * - Make Pipe_ConfigurePipe() mask the given endpoint number against PIPE_EPNUM_MASK to ensure the endpoint IN direction bit is
845 * cleared to prevent endpoint type corruption
846 * - Fixed issue opening CDC-ACM ports on hosts when the CDC device tries to send data before the host has set the line encoding
847 * - Fixed USB_OPT_MANUAL_PLL option being ignored during device disconnects on some models (thanks to Brian Dickman)
848 * - Fixed documentation mentioning Pipe_GetCurrentToken() function when correct function name is Pipe_GetPipeToken()
849 * - Fixed ADC driver for the ATMEGA32U4 and ATMEGA16U4 (thanks to Opendous Inc.)
850 * - Fixed CDCHost demo unfreezing the pipes at the point of configuration, rather than use
851 * - Fixed MassStorage demo not clearing the reset flag when a Mass Storage Reset is issued while not processing a command
852 * - Fixed USB_Host_SendControlRequest() not re-suspending the USB bus when initial device ready-wait fails
853 * - Fixed USB Pad regulator not being disabled on some AVR models when the USB_OPT_REG_DISABLED option is used
854 * - Fixed Host mode to Device mode UID change not causing a USB Disconnect event when a device was connected
855 * - Fixed Mouse/Keyboard demos not performing the correct arithmetic on the Idle period at the right times (thanks to Brian Dickman)
856 * - Fixed GenericHID failing HID class tests due to incorrect Logical Minimum and Logical Maximum values (thanks to Soren Greiner)
857 * - Fixed incorrect PIPE_EPNUM_MASK mask causing pipe failures on devices with endpoint addresses of 8 and above (thanks to John Andrews)
858 * - Fixed report data alignment issues in the MouseHostWithParser demo when X and Y movement data size is not a multiple of 8 bits
859 * - Fixed HID Report Descriptor Parser not correctly resetting internal states when a REPORT ID element is encountered
860 * - Fixed incorrect BUTTONS_BUTTON1 for the STK526 target
861 * - Fixed RNDIS demos freezing when more than one connection was attempted simultaneously, causing memory corruption
862 * - Fixed USBtoSerial demo receiving noise from the USART due to pull-up not being enabled
863 *
864 *
865 * \section Sec_ChangeLog090605 Version 090605
866 *
867 * - Fixed bug in RNDISEthernet and DualCDC demos not using the correct USB_ControlRequest structure for control request data
868 * - Fixed documentation showing incorrect USB mode support on the supported AVRs list
869 * - Fixed RNDISEthernet not working under Linux due to Linux requiring an "optional" RNDIS request which was unhandled
870 * - Fixed Mouse and Keyboard device demos not acting in accordance with the HID specification for idle periods (thanks to Brian Dickman)
871 * - Removed support for endpoint/pipe non-control interrupts; these did not act in the way users expected, and had many subtle issues
872 * - Fixed Device Mode not handling Set Feature and Clear Feature Chapter 9 requests that are addressed to the device (thanks to Brian Dickman)
873 * - Moved control endpoint interrupt handling into the library itself, enable via the new INTERRUPT_CONTROL_ENDPOINT token
874 * - Fixed CDCHost not clearing configured pipes and resetting configured pipes mask when a partially enumerated invalid CDC
875 * interface is skipped
876 * - Clarified the size of library tokens which accept integer values in the Compile Time Tokens page, values now use the smallest datatype
877 * inside the library that is able to hold their defined value to save space
878 * - Removed DESCRIPTOR_ADDRESS() macro as it was largely superfluous and only served to obfuscate code
879 * - Rewritten event system to remove all macros, to make user code clearer
880 * - Fixed incorrect ENDPOINT_EPNUM_MASK mask preventing endpoints above EP3 from being selected (thanks to Jonathan Oakley)
881 * - Removed STREAM_CALLBACK() macro - callbacks now use regular function definitions to clarify user code
882 * - Removed DESCRIPTOR_COMPARATOR() macro - comparators should now use regular function definitions to clarify user code
883 * - USB_IsConnected is now cleared before the USB_Disconnect() event is fired in response to VBUS being removed
884 * - Fixed incorrect PID value being used in the USBtoSerial project (thanks to Phill)
885 * - Deleted StdDescriptors.c, renamed USB_GetDescriptor() to CALLBACK_USB_GetDescriptor, moved ConfigDescriptor.c/.h from the
886 * LUFA/Drivers/USB/Class/ directory to LUFA/Drivers/USB/HighLevel/ in preparation for the new USB class APIs
887 * - Moved out each demos' functionality library files (e.g. Ring Buffer library) to /Lib directories for a better directory structure
888 * - Removed Tx interrupt from the USBtoSerial demo; now sends characters via polling to ensure more time for the Rx interrupt
889 * - Fixed possible enumeration errors from spin-loops which may fail to exit if the USB connection is severed before the exit condition
890 * becomes true
891 *
892 *
893 * \section Sec_ChangeLog090510 Version 090510
894 *
895 * - Added new GenericHIDHost demo
896 * - Corrections to the KeyboardHost and MouseHost demos' pipe handling to freeze and unfreeze the data pipes at the point of use
897 * - KeyboardHost, MouseHost and GenericHIDHost demos now save and restore the currently selected pipe inside the pipe ISR
898 * - Changed GenericHID device demo to use the LUFA scheduler, added INTERRUPT_DATA_ENDPOINT and INTERRUPT_CONTROL_ENDPOINT compile
899 * time options
900 * - All comments in the library, bootloaders, demos and projects have now been spell-checked and spelling mistakes/typos corrected
901 * - Added new PIMA_DATA_SIZE() define to the Still Image Host demo
902 * - Add call to MassStore_WaitForDataReceived() in MassStore_GetReturnedStatus() to ensure that the CSW has been received in the
903 * extended MSC timeout period before continuing, to prevent long processing delays from causing the MassStore_GetReturnedStatus()
904 * to early-abort (thanks to Dmitry Maksimov)
905 * - Move StdRequestType.h, StreamCallbacks.h, USBMode.h from the LowLevel USB driver directory to the HighLevel USB driver directory,
906 * where they are more suited
907 * - Removed all binary constants and replaced with decimal or hexadecimal constants so that unpatched GCC compilers can still build the
908 * code without having to be itself patched and recompiled first
909 * - Added preprocessor checks and documentation to the bootloaders giving information about missing SIGNATURE_x defines due to
910 * outdated avr-libc versions.
911 * - Added support to the CDCHost demo for devices with multiple CDC interfaces which are not the correct ACM type preceding the desired
912 * ACM CDC interface
913 * - Fixed GenericHID demo not starting USB and HID management tasks when not using interrupt driven modes (thanks to Carl Kjeldsen)
914 * - Fixed RNDISEthenet demo checking the incorrect message field for packet size constraints (thanks to Jonathan Oakley)
915 * - Fixed WriteNextReport code in the GenericHIDHost demo using incorrect parameter types and not selecting the correct endpoint
916 * - Adjusted sample CTC timer calculations in the AudioOutput and AudioInput demos to match the CTC calculations in the AVR datasheet,
917 * and to fix instances where rounding caused the endpoint to underflow (thanks to Robin Theunis)
918 * - The USB_Host_SendControlRequest() function no longer automatically selects the Control pipe (pipe 0), so that other control type
919 * pipes can be used with the function
920 * - The USB Host management task now saves and restores the currently selected pipe before and after the task completes
921 * - Fixed GenericHIDHost demo report write routine incorrect for control type requests (thanks to Andrei Krainev)
922 * - Removed Endpoint_ClearCurrentBank() and Pipe_ClearCurrentBank() in favor of new Endpoint_ClearIN(), Endpoint_ClearOUT(),
923 * Pipe_ClearIN() and Pipe_ClearOUT() macros (done to allow for the detection of packets of zero length)
924 * - Renamed *_ReadWriteAllowed() macros to *_IsReadWriteAllowed() to remain consistent with the rest of the LUFA API
925 * - Endpoint_IsSetupReceived() macro has been renamed to Endpoint_IsSETUPReceived(), Endpoint_ClearSetupReceived() macro has been
926 * renamed to Endpoint_ClearSETUP(), the Pipe_IsSetupSent() macro has been renamed to Pipe_IsSETUPSent() and the
927 * Pipe_ClearSetupSent() macro is no longer applicable and should be removed - changes made to compliment the new endpoint and pipe
928 * bank management API
929 * - Updated all demos, bootloaders and projects to use the new endpoint and pipe management APIs (thanks to Roman Thiel from Curetis AG)
930 * - Updated library doxygen documentation, added groups, changed documentation macro functions to real functions for clarity
931 * - Removed old endpoint and pipe aliased read/write/discard routines which did not have an explicit endian specifier for clarity
932 * - Removed the ButtLoadTag.h header file, as no one used for its intended purpose anyway
933 * - Renamed the main Drivers/AT90USBXXX directory to Drivers/Peripheral, renamed the Serial_Stream driver to SerialStream
934 * - Fixed CDC and USBtoSerial demos freezing where buffers were full while still transmitting or receiving (thanks to Peter Hand)
935 * - Removed "Host_" section of the function names in ConfigDescriptor.h, as most of the routines can now be used in device mode on the
936 * device descriptor
937 * - Renamed functions in the HID parser to have a "USB_" prefix and the acronym "HID" in the name
938 * - Fixed incorrect HID interface class and subclass values in the Mouse and KeyboardMouse demos (thanks to Brian Dickman)
939 * - Capitalized the "Descriptor_Search" and "Descriptor_Search_Comp" prefixes of the values in the DSearch_Return_ErrorCodes_t and
940 * DSearch_Comp_Return_ErrorCodes_t enums
941 * - Removed "ERROR" from the enum names in the endpoint and pipe stream error code enums
942 * - Renamed the USB_PowerOnErrorCodes_t enum to USB_InitErrorCodes_t, renamed the POWERON_ERROR_NoUSBModeSpecified enum value to
943 * USB_INITERROR_NoUSBModeSpecified
944 * - Renamed USB_PowerOnFail event to USB_InitFailure
945 * - Renamed OTG.h header functions to be more consistent with the rest of the library API
946 * - Changed over all deprecated GCC structure tag initializers to the standardized C99 format (thanks to Mike Alexander)
947 * - USB_HostRequest renamed to USB_ControlRequest, entire control request header is now read into USB_ControlRequest in Device mode
948 * rather than having the library pass only partially read header data to the application
949 * - The USB_UnhandledControlPacket event has had its parameters removed, in favor of accessing the new USB_ControlRequest structure
950 * - The Endpoint control stream functions now correctly send a ZLP to the host when less data than requested is sent
951 * - Fixed USB_RemoteWakeupEnabled flag never being set (the REMOTE WAKEUP Set Feature request was not being handled)
952 * - Renamed the FEATURELESS_CONTROL_ONLY_DEVICE compile-time token to CONTROL_ONLY_DEVICE
953 * - Endpoint configuration is now refined to give better output when all configurations have static inputs - removed the now useless
954 * STATIC_ENDPOINT_CONFIGURATION compile time token
955 * - Fixed SPI driver init function not clearing SPI2X bit when not needed
956 * - Fixed PREVENT ALLOW MEDIUM REMOVAL command issuing in the MassStorageHost demo using incorrect parameters (thanks to Mike Alex)
957 * - Fixed MassStorageHost demo broken due to an incorrect if statement test in MassStore_GetReturnedStatus()
958 * - Fixed reversed signature byte ordering in the CDC bootloader (thanks to Johannes Raschke)
959 * - Changed PIPE_CONTROLPIPE_DEFAULT_SIZE from 8 to 64 to try to prevent problems with faulty devices which do not respect the given
960 * wLength value when reading in the device descriptor
961 * - Fixed missing semicolon in the ATAVRUSBRF01 LED board driver code (thanks to Morten Lund)
962 * - Changed LED board driver code to define dummy LED masks for the first four board LEDs, so that user code can be compiled for boards
963 * with less than four LEDs without code modifications (thanks to Morten Lund)
964 * - Changed HWB board driver to Buttons driver, to allow for the support of future boards with more than one mounted GPIO button
965 * - Serial driver now correctly calculates the baud register value when in double speed mode
966 * - Init function of the Serial driver is now static inline to product smaller code for the common-case of static init values
967 *
968 *
969 * \section Sec_ChangeLog090401 Version 090401
970 *
971 * - Fixed MagStripe project configuration descriptor containing an unused (blank) endpoint descriptor
972 * - Incorporated makefile changes by Denver Gingerich to retain compatibility with stock (non-WinAVR) AVR-GCC installations
973 * - Fixed makefile EEPROM programming targets programming FLASH data in addition to EEPROM data
974 * - LUFA devices now enumerate correctly with LUFA hosts
975 * - Fixed Configuration Descriptor search routine freezing when a comparator returned a failure
976 * - Removed HID report item serial dump in the MouseHostWithParser and KeyboardHostWithParser - useful only for debugging, and
977 * slowed down the enumeration of HID devices too much
978 * - Increased the number of bits per track which can be read in the MagStripe project to 8192 when compiled for the AT90USBXXX6/7
979 * - Fixed KeyboardMouse demo discarding the wIndex value in the REQ_GetReport request
980 * - USBtoSerial demo now discards all Rx data when not connected to a USB host, rather than buffering characters for transmission
981 * next time the device is attached to a host.
982 * - Added new F_USB compile time constant to the library and makefiles, to give the raw input clock (used to feed the PLL before any
983 * clock prescaling is performed) frequency, so that the PLL prescale mask can be determined
984 * - Changed stream wait timeout counter to be 16-bit, so that very long timeout periods can be set for correct communications with
985 * badly designed hosts or devices which greatly exceed the USB specification limits
986 * - Mass Storage Host demo now uses a USB_STREAM_TIMEOUT_MS of two seconds to maintain compatibility with poorly designed devices
987 * - Function attribute ATTR_ALWAYSINLINE renamed to ATTR_ALWAYS_INLINE to match other function attribute macro naming conventions
988 * - Added ATTR_ALWAYS_INLINE attribute to several key inlined library components, to ensure they are inlined in all circumstances
989 * - Removed SetSystemClockPrescaler() macro, the clock_prescale_set() avr-libc macro has been corrected in recent avr-libc versions
990 * - Fixed incorrect/missing control status stage transfers on demos, bootloaders and applications (thanks to Nate Lawson)
991 * - The NO_CLEARSET_FEATURE_REQUEST compile time token has been renamed to FEATURELESS_CONTROL_ONLY_DEVICE, and its function expanded
992 * to also remove parts of the Get Status chapter 9 request to further reduce code usage
993 * - Makefile updated to include output giving the currently selected BOARD parameter value
994 * - Board Dataflash driver now allows for dataflash ICs which use different shifts for setting the current page/byte address (thanks
995 * to Kenneth Clubb)
996 * - Added DataflashManager_WriteBlocks_RAM() and DataflashManager_ReadBlocks_RAM() functions to the MassStorage demo, to allow for easy
997 * interfacing with a FAT library for dataflash file level access
998 * - Corrected CDC class bootloader to fix a few bugs, changed address counter to store x2 addresses for convenience
999 * - Fixed typos in the SPI driver SPI_SPEED_FCPU_DIV_64 and SPI_SPEED_FCPU_DIV_128 masks (thanks to Markus Zocholl)
1000 * - Keyboard and Mouse device demos (normal, data interrupt and fully interrupt driven) combined into unified keyboard and mouse demos
1001 * - Keyboard and Mouse host demos (normal and data interrupt driven) combined into unified keyboard and mouse demos
1002 * - Removed AVRISP_Programmer project due to code quality concerns
1003 * - Fixed CDC demo not sending an empty packet after each transfer to prevent the host from buffering incoming data
1004 * - Fixed documentation typos and preprocessor checks relating to misspellings of the USE_RAM_DESCRIPTORS token (thanks to Ian Gregg)
1005 * - Fixed USBTask.h not conditionally including HostChapter9.h only when USB_CAN_BE_HOST is defined (thanks to Ian Gregg)
1006 * - Fixed incorrect ADC driver init register manipulation (thanks to Tobias)
1007 * - Added new GenericHID device demo application
1008 * - Fixed Still Image Host SImage_SendData() function not clearing the pipe bank after sending data
1009 *
1010 *
1011 * \section Sec_ChangeLog090209 Version 090209
1012 *
1013 * - PWM timer mode in AudioOut demo changed to Fast PWM for speed
1014 * - Updated Magstripe project to work with the latest hardware revision
1015 * - Fixed library not responding to the BCERRI flag correctly in host mode, leading to device lockups
1016 * - Fixed library handling Get Descriptor requests when not addressed as standard requests to the device or interface (thanks to
1017 * Nate Lawson)
1018 * - Fixed serious data corruption issue in MassStorage demo dataflash write routine
1019 * - Added new NO_CLEARSET_FEATURE_REQUEST compile time token
1020 * - USB task now restores previous global interrupt state after execution, rather than forcing global interrupts to be enabled
1021 * - Fixed USB_DeviceEnumerationComplete event firing after each configuration change, rather than once after the initial configuration
1022 * - Added ENDPOINT_DOUBLEBANK_SUPPORTED() macros to Endpoint.h, altered ENDPOINT_MAX_SIZE() to allow user to specify endpoint
1023 * - ENDPOINT_MAX_ENDPOINTS changed to ENDPOINT_TOTAL_ENDPOINTS, PIPE_MAX_PIPES changed to PIPE_TOTAL_PIPES
1024 * - Endpoint and Pipe non-control stream functions now ensure endpoint or pipe is ready before reading or writing
1025 * - Changed Teensy bootloader to use a watchdog reset when exiting rather than a software jump
1026 * - Fixed integer promotion error in MassStorage and MassStorageHost demos, corrupting read/write transfers
1027 * - SPI_SendByte is now SPI_TransferByte, added new SPI_SendByte and SPI_ReceiveByte functions for fast one-way transfer
1028 * - MassStorage demo changed to use new fast one-way SPI transfers to increase throughput
1029 * - MassStorage handling of Mass Storage Reset class request improved
1030 * - Altered MassStorage demo dataflash block read code for speed
1031 * - Added USB_IsSuspended global flag
1032 * - Simplified internal Dual Mode (OTG) USB library code to reduce code size
1033 * - Extended stream timeout period to 100ms from 50ms
1034 * - Mass Storage Host demo commands now all return an error code from the Pipe_Stream_RW_ErrorCodes_t enum
1035 * - Added SubErrorCode parameter to the USB_DeviceEnumerationFailed event
1036 * - VBUS drop interrupt now disabled during the manual-to-auto VBUS delivery handoff
1037 * - Simplified low level backend so that device/host mode initialization uses the same code paths
1038 * - Added workaround for faulty Mass Storage devices which do not implement the required GET_MAX_LUN request
1039 * - Removed buggy Telnet application from the RNDIS demo
1040 * - Moved Mass Storage class requests in the Mass Storage Host demo to wrapper functions in MassStoreCommands.c
1041 * - Fixed incorrect SCSI command size value in the Request Sense command in MassStoreCommands.c
1042 * - Added SetProtocol request to HID class non-parser Mouse and Keyboard demos to force devices to use the correct Boot Protocol
1043 * - Added new "dfu" and "flip" programming targets to project makefiles
1044 * - HID_PARSE_Sucessful enum member typo corrected to HID_PARSE_Successful
1045 * - Changed COLLECTION item structures in the HID descriptor parser to include the collection's Usage Page value
1046 * - Serial driver now sets Tx line as output, enables pull-up on Rx line
1047 * - Fixed smaller USB AVRs raising multiple connection and disconnection events when NO_LIMITED_CONTROLLER_CONNECT is disabled
1048 * - Added HOST_DEVICE_SETTLE_DELAY_MS to give the host delay after a device is connected before it is enumerated
1049 * - Fixed KeyboardHostWithParser demo linking against the wrong global variables
1050 * - Completed doxygen documentation of remaining library bootloaders, demos and projects
1051 * - Fixed incorrect bootloader start address in the TeensyHID bootloader
1052 * - Added HWB button whole-disk ASCII dump functionality to MassStoreHost demo
1053 * - Replaced printf_P(PSTR("%c"), {Variable}) calls with putchar(<Variable>) for speed and size savings
1054 * - Serial driver now accepts baud rates over 16-bits in size, added double speed flag option
1055 * - Fixed incorrect callback abort return value in Pipe.c
1056 * - Added new flip-ee and dfu-ee makefile targets (courtesy of Opendous Inc.)
1057 * - Removed reboot-on-disconnect code from the TeensyHID bootloader, caused problems on some systems
1058 * - Fixed AudioOutput and AudioInput demos looping on the endpoint data, rather than processing a sample at a time and returning
1059 * each time the task runs to allow for other tasks to execute
1060 * - Added support for the Atmel ATAVRUSBRF01 board
1061 * - Added AVRISP Programmer Project, courtesy of Opendous Inc.
1062 * - Fixed CDC Host demo not searching through both CDC interfaces for endpoints
1063 * - Fixed incorrect Product String descriptor length in the DFU class bootloader
1064 *
1065 *
1066 * \section Sec_ChangeLog081224 Version 081224
1067 *
1068 * - MyUSB name changed to LUFA, the Lightweight USB Framework for AVRs
1069 * - Fixed Mass Storage Host demo's MassStore_SendCommand() delay in the incorrect place
1070 * - Fixed USBtoSerial demo not calling ReconfigureUSART() after a change in the line encoding
1071 * - Fixed infinite loop in host mode Host-to-Device control transfers with data stages
1072 * - HID report parser now supports devices with multiple reports in one interface via Report IDs
1073 * - Fixed RZUSBSTICK board LED driver header incorrect macro definition order causing compile errors
1074 * - Calling USB_Init() when the USB interface is already configured now forces a complete interface reset
1075 * and re-enumeration - fixes MyUSB DFU bootloader not switching to app code correctly when soft reset used
1076 * - Fixed "No newline at end of file" warning when stream callbacks are enabled
1077 * - DFU bootloader now uses fixed signature bytes per device, rather than reading them out dynamically for size
1078 * - Added new FIXED_CONTROL_ENDPOINT_SIZE and USE_SINGLE_DEVICE_CONFIGURATION switches to statically define certain values to
1079 * reduce compiled binary size
1080 * - Added new NO_LIMITED_CONTROLLER_CONNECT switch to prevent the library from trying to determine bus connection
1081 * state from the suspension and wake up events on the smaller USB AVRs
1082 * - Added summary of all library compile time tokens to the documentation
1083 * - Added overview of the LUFA scheduler to the documentation
1084 * - Removed MANUAL_PLL_CONTROL compile time token, replaced with a mask for the USB_Init() Options parameter
1085 * - CDC bootloader now uses the correct non-far or far versions of the pgm_* functions depending on if RAMPZ is defined
1086 * - Doxygen documentation now contains documentation on all the projects, bootloaders and most demos included with the library
1087 * - CDC bootloader now runs user application when USB disconnected rather than waiting for a hard reset
1088 * - MouseHostWithParser and KeyboardHostWithParser now support multiple-report devices
1089 * - RNDIS demo can now close connections correctly using the new TCP_APP_CLOSECONNECTION() macro - used in Webserver
1090 * - Fixed the DFU bootloader, no longer freezes up when certain files are programmed into an AVR, made reading/writing faster
1091 * - Fixed mouse/joystick up/down movements reversed - HID mouse X/Y coordinates use a left-handed coordinate system, not a normal
1092 * right-handed system
1093 * - Added stub code to the CDC and USBtoSerial demos showing how to read and set the RS-232 handshake lines - not currently used in
1094 * the demos, but the example code and supporting defines are now in place
1095 * - Interrupts are now disabled when processing a control request in device mode, to avoid exceeding the strict control request
1096 * timing requirements.
1097 * - All demos now use a central StatusUpdate() function rather than direct calls to the board LED functions, so that the demos can
1098 * easily be altered to show different LED combinations (or do something else entirely) as the demo's status changes
1099 * - Removed LED commands from the CDC bootloader, unused by most AVR910 programming software
1100 * - Fixed RNDIS demo ICMP ping requests echoing back incorrect data
1101 * - Added DHCP server code to RNDIS demo, allowing for hands-free auto configuration on any PC
1102 * - Fixed DFU bootloader PID value for the ATMEGA16U4 AVR
1103 * - Endpoint and Pipe configuration functions now return an error code indicating success or failure
1104 * - USB Reset in device mode now resets and disables all device endpoints
1105 * - Added intermediate states to the host mode state machine, reducing the USB task blocking time to no more than 1ms explicitly per
1106 * invocation when in host mode
1107 * - Added support for the ATMEGA32U6 microcontroller
1108 * - Added STATIC_ENDPOINT_CONFIGURATION compile time option, enabled in the bootloaders to minimize space usage
1109 * - Removed redundant code from the USB device GetStatus() chapter 9 processing routine
1110 * - Added new TeensyHID bootloader, compatible with the Teensy HID protocol (http://www.pjrc.com/teensy/)
1111 * - Versions are now numbered by release dates, rather than arbitrary major/minor revision numbers
1112 * - USB_RemoteWakeupEnabled is now correctly set and cleared by SetFeature and ClearFeature requests from the host
1113 * - Changed prototype of GetDescriptor, so that it now returns the descriptor size (or zero if the descriptor doesn't exist)
1114 * rather than passing the size back to the caller through a parameter and returning a boolean
1115 *
1116 *
1117 * \section Sec_ChangeLog153 Version 1.5.3 - Released 2nd October, 2008
1118 *
1119 * - Fixed CDC bootloader using pgmspace macros for some descriptors inappropriately
1120 * - Updated all Mouse and Keyboard device demos to include boot protocol support (now works in BIOS)
1121 * - Renamed bootloader directories to remove spaces, which were causing build problems on several OSes
1122 * - Removed serial number strings from all but the MassStore demo where it is required - users were not
1123 * modifying the code to either omit the descriptor or use a unique serial per device causing problems
1124 * when multiple units of the same device were plugged in at the same time
1125 * - AudioOutput and AudioInput demos now correctly silence endpoints when not enabled by the host
1126 * - Added KeyboardMouse demo (Keyboard and Mouse functionality combined into a single demo)
1127 * - Added DriverStubs directory to house board level driver templates, to make MyUSB compatible custom board
1128 * driver creation easier
1129 * - Extended MassStorage demo to support multiple LUNs, 2 by default
1130 * - Fixed incorrect device address mask, preventing the device from enumerating with addresses larger than 63
1131 * - Fixed incorrect data direction mask in the GetStatus standard request, preventing it from being handled
1132 * - Fixed incorrect GetStatus standard request for endpoints, now returns the endpoint STALL status correctly
1133 * - Added in new USB_RemoteWakeupEnabled and USB_CurrentlySelfPowered flags rather than using fixed values
1134 * - Added DualCDC demo to demonstrate the use of Interface Association Descriptors
1135 * - Added pipe NAK detection and clearing API
1136 * - Added pipe status change (NAK, STALL, etc.) interrupt API
1137 * - Fixed MassStorageHost demo so that it no longer freezes randomly when issuing several commands in a row
1138 * - Host demos configuration descriptor routines now return a unique error code when the returned data does
1139 * not have a valid configuration descriptor header
1140 * - Added Endpoint_WaitUntilReady() and Pipe_WaitUntilReady() functions
1141 * - Stream functions now have software timeouts, timeout period can be set by the USB_STREAM_TIMEOUT_MS token
1142 * - All demos now pass the USB.org automated Chapter 9 device compliance tests
1143 * - All HID demos now pass the USB.org automated HID compliance tests
1144 * - Polling interval of the interrupt endpoint in the CDC based demos changed to 0xFF to fix problems on Linux systems
1145 * - Changed stream functions to accept a new callback function, with NO_STREAM_CALLBACKS used to disable all callbacks
1146 * - Mass Storage demo dataflash management routines changed to use the endpoint stream functions
1147 * - Added AVRStudio project files for each demo in addition to the existing Programmer's Notepad master project file
1148 * - Re-added call to ReconfigureUSART() in USBtoSerial SetLineCoding request, so that baud rate changes
1149 * are reflected in the hardware (change was previously lost)
1150 *
1151 *
1152 * \section Sec_ChangeLog152 Version 1.5.2 - Released 31st July, 2008
1153 *
1154 * - Fixed SwapEndian_32() function in Common.h so that it now works correctly (wrong parameter types)
1155 * - Updated RNDIS demo - notification endpoint is no longer blocking so that it works with faulty Linux RNDIS
1156 * implementations (where the notification endpoint is ignored in favor of polling the control endpoint)
1157 * - Fixed incorrect Vendor Description string return size in RNDIS demo for the OID_GEN_VENDOR_DESCRIPTION OID token
1158 * - Added very basic TCP/IP stack and HTTP/TELNET servers to RNDIS demo
1159 * - Fixed DFU bootloader exit causing programming software to complain about failed writes
1160 * - Fixed DFU bootloader EEPROM programming mode wiping first flash page
1161 * - Fixed Clear/Set Feature device standard request processing code (fixing MassStorage demo in the process)
1162 * - Added support for the ATMEGA16U4 AVR microcontroller
1163 * - Library license changed from LGPLv3 to MIT license
1164 *
1165 *
1166 * \section Sec_ChangeLog151 Version 1.5.1 - Released 7th July, 2008
1167 *
1168 * - Changed host demos to enable the host function task on the firing of the USB_DeviceEnumerationComplete event
1169 * rather than the USB_DeviceAttached event
1170 * - HID Usage Stack now forcefully cleared after an IN/OUT/FEATURE item has been completely processed to remove
1171 * any referenced but not created usages
1172 * - Changed USB_INT_DisableAllInterrupts() and USB_INT_ClearAllInterrupts(), USB_Host_GetNextDescriptorOfType(),
1173 * USB_Host_GetNextDescriptorOfTypeBefore(), USB_Host_GetNextDescriptorOfTypeAfter() to normal functions (from inline)
1174 * - Fixed USBtoSerial demo not sending data, only receiving
1175 * - Fixed main makefile to make all by default, fixed MagStripe directory case to prevent case-sensitive path problems
1176 * - ConfigDescriptor functions made normal, instead of static inline
1177 * - Pipe/Endpoint *_Ignore_* functions changed to *_Discard_*, old names still present as aliases
1178 * - Fixed ENDPOINT_MAX_SIZE define to be correct on limited USB controller AVRs
1179 * - Changed endpoint and pipe size translation routines to use previous IF/ELSE IF cascade code, new algorithmic
1180 * approach was buggy and caused problems
1181 * - Bootloaders now compile with -fno-inline-small-functions option to reduce code size
1182 * - Audio demos now use correct endpoint sizes for full and limited controller USB AVRs, double banking in all cases
1183 * to be in line with the specification (isochronous endpoints MUST be double banked)
1184 * - Added Interface Association descriptor to StdDescriptors.h, based on the relevant USB2.0 ECN
1185 * - Fixed MIDI demo, corrected Audio Streaming descriptor to follow the MIDI-specific AS structure
1186 * - Fixed HID class demo descriptors so that the HID interface's protocol is 0x00 (required for non-boot protocol HID
1187 * devices) to prevent problems on hosts expecting the boot protocol functions to be supported
1188 * - Added read/write control stream functions to Endpoint.h
1189 * - Fixed AudioOut demo not setting port pins to inputs on USB disconnect properly
1190 * - Added RNDISEthernet demo application
1191 *
1192 *
1193 * \section Sec_ChangeLog150 Version 1.5.0 - Released 10 June, 2008
1194 *
1195 * - Fixed MIDI demo, now correctly waits for the endpoint to be ready between multiple note messages
1196 * - Added CDC Host demo application
1197 * - Added KeyboardFullInt demo application
1198 * - Endpoint and Pipe creation routines now mask endpoint/pipe size with the size mask, to remove transaction
1199 * size bits not required for the routines (improves compatibility with devices)
1200 * - Fixed AudioInput demo - now correctly sends sampled audio to the host PC
1201 * - Fixed AudioOutput demo once more -- apparently Windows requires endpoint packets to be >=192 bytes
1202 * - Shrunk round-robbin scheduler code slightly via the use of struct pointers rather than array indexes
1203 * - Fixed off-by-one error when determining if the Usage Stack is full inside the HID Report parser
1204 * - Renamed Magstripe.h to MagstripeHW.h and moved driver out of the library and into the MagStripe demo folder
1205 * - Added preprocessor checks to enable C linkage on the library components when used with a C++ compiler
1206 * - Added Still Image Host demo application
1207 * - The USB device task now restores the previously selected endpoint, allowing control requests to be transparently
1208 * handled via interrupts while other endpoints are serviced through polling
1209 * - Fixed device signature being sent in reverse order in the CDC bootloader
1210 * - Host demos now have a separate ConfigDescriptor.c/.h file for configuration descriptor processing
1211 * - HostWithParser demos now have a separate HIDReport.c/.h file for HID report processing and dumping
1212 * - Removed non-mandatory commands from MassStorage demo to save space, fixed SENSE ResponseCode value
1213 * - CDC demos now send empty packets after sending a full one to prevent buffering issues on the host
1214 * - Updated demo descriptors to use VID/PID values donated by Atmel
1215 * - Added DoxyGen documentation to the source files
1216 * - Fixed Serial_IsCharReceived() definition, was previously reversed
1217 * - Removed separate USB_Descriptor_Language_t descriptor, USB_Descriptor_String_t is used instead
1218 * - Removed unused Device Qualifier descriptor structure
1219 * - Renamed the USB_CreateEndpoints event to the more appropriate USB_ConfigurationChanged
1220 * - Fixed MassStorageHost demo reading in the block data in reverse
1221 * - Removed outdated typedefs in StdRequestType.h, superseded by the macro masks
1222 * - Corrected OTG.h is now included when the AVR supports both Host and Device modes, for creating OTG products
1223 * - USB_DeviceEnumerationComplete event is now also fired when in device mode and the host has finished its enumeration
1224 * - Interrupt driven demos now properly restore previously selected endpoint when ISR is complete
1225 * - The value of USB_HOST_TIMEOUT_MS can now be overridden in the user project makefile to a custom fixed timeout value
1226 * - Renamed USB_Host_SOFGeneration_* macros to more friendly USB_Host_SuspendBus(), USB_Host_ResumeBus()
1227 * and USB_Host_IsBusSuspended()
1228 * - Renamed *_*_Is* macros to *_Is* to make all flag checking macros consistent, Pipe_SetInterruptFreq() is now
1229 * Pipe_SetInterruptPeriod() to use the correct terminology
1230 * - UnicodeString member of USB_Descriptor_String_t struct changed to an ordinary int array type, so that the GCC
1231 * Unicode strings (prefixed with an L before the opening quotation mark) can be used instead of explicit arrays
1232 * of ASCII characters
1233 * - Fixed Endpoint/Pipes being configured incorrectly if the maximum endpoint/pipe size for the selected USB AVR
1234 * model was given as the bank size
1235 * - HID device demos now use a true raw array for the HID report descriptor rather than a struct wrapped array
1236 * - Added VERSION_BCD() macro, fixed reported HID and USB version numbers in demo descriptors
1237 * - Cleaned up GetDescriptor device chapter 9 handler function
1238 * - Added GET_REPORT class specific request to HID demos to make them complaint to the HID class
1239 * - Cleaned up setting of USB_IsInitialized and USB_IsConnected values to only when needed
1240 * - Removed Atomic.c and ISRMacro.h; the library was already only compatible with recent avr-lib-c for other reasons
1241 * - All demos and library functions now use USB standardized names for the USB data (bRequest, wLength, etc.)
1242 * - Added USE_NONSTANDARD_DESCRIPTOR_NAMES token to switch back to the non-standard descriptor element names
1243 *
1244 *
1245 * \section Sec_ChangeLog141 Version 1.4.1 - Released 19 May, 2008
1246 *
1247 * - Enhanced KeyboardWithParser demo, now prints out pressed alphanumeric characters like the standard demo
1248 * - Fixed MassStorage demo, read/writes using non mode-10 commands now work correctly
1249 * - Corrected version number in Version.h
1250 *
1251 *
1252 * \section Sec_ChangeLog140 Version 1.4.0 - Released 5 May, 2008
1253 *
1254 * - Added HID Report Parser API to the library
1255 * - Added Mouse and Keyboard host demo applications, using the new HID report parser engine
1256 * - Added MouseFullInt demo, which demonstrates a fully interrupt (including control requests) mouse device
1257 * - Fixed incorrect length value in the audio control descriptor of the AudioOutput and AudioInput demos
1258 * - Added MIDI device demo application to the library
1259 * - Fixed problem preventing USB devices from being resumed from a suspended state
1260 * - Added new CDC class bootloader to the library, based on the AVR109 bootloader protocol
1261 * - Added header to each demo application indicating the mode, class, subclass, standards used and supported speed
1262 * - Functions expecting endpoint/pipe numbers are no longer automatically masked against ENDPOINT_EPNUM_MASK or
1263 * PIPE_PIPENUM_MASK - this should be manually added to code which requires it
1264 * - Fixed DFU class bootloader - corrected frequency of flash page writes, greatly reducing programming time
1265 * - Renamed AVR_HOST_GetDeviceConfigDescriptor() to USB_Host_GetDeviceConfigDescriptor() and AVR_HOST_GetNextDescriptor()
1266 * to USB_Host_GetNextDescriptor()
1267 * - Added new USB_Host_GetNextDescriptorOfTypeBefore() and USB_Host_GetNextDescriptorOfTypeAfter() routines
1268 * - Moved configuration descriptor routines to MyUSB/Drivers/USB/Class/, new accompanying ConfigDescriptors.c file
1269 * - Added new configuration descriptor comparator API for more powerful descriptor parsing, updated host demos to use the
1270 * new comparator API
1271 * - Fixed MassStorageHost demo capacity printout, and changed data read/write mode from little-endian to the correct
1272 * big-endian for SCSI devices
1273 * - Fixed macro/function naming consistency; USB_HOST is now USB_Host, USB_DEV is now USB_Device
1274 * - Added better error reporting to host demos
1275 * - Added 10 microsecond delay after addressing devices in host mode, to prevent control stalls
1276 *
1277 *
1278 * \section Sec_ChangeLog132 Version 1.3.2 - Released April 1st, 2008
1279 *
1280 * - Added call to ReconfigureUSART() in USBtoSerial SetLineCoding request, so that baud rate changes
1281 * are reflected in the hardware
1282 * - Fixed CDC and USBtoSerial demos - Stream commands do not work for control endpoints, and the
1283 * GetLineCoding request had an incorrect RequestType mask preventing it from being processed
1284 * - Improved reliability of the USBtoSerial demo, adding a busy wait while the buffer is full
1285 * - Device control endpoint size is now determined from the device's descriptors rather than being fixed
1286 * - Separated out SPI code into new SPI driver in AT90USBXXX driver directory
1287 * - Bootloader now returns correct PID for the selected USB AVR model, not just the AT90USB128X PID
1288 * - Added support for the RZUSBSTICK board
1289 * - Bicolour driver removed in favor of generic LEDs driver
1290 * - Added support for the ATMEGA32U4 AVR
1291 * - Added MANUAL_PLL_CONTROL compile time option to prevent the USB library from manipulating the PLL
1292 *
1293 *
1294 * \section Sec_ChangeLog131 Version 1.3.1 - Released March 19th 2008
1295 *
1296 * - Fixed USB to Serial demo - class value in the descriptors was incorrect
1297 * - Control endpoint size changed from 64 bytes to 8 bytes to save on USB FIFO RAM and to allow low
1298 * speed mode devices to enumerate properly
1299 * - USB to Serial demo data endpoints changed to dual-banked 16 byte to allow the demo to work
1300 * on USB AVRs with limited USB FIFO RAM
1301 * - Changed demo endpoint numbers to use endpoints 3 and 4 for double banking, to allow limited
1302 * USB device controller AVRs (AT90USB162, AT90USB82) to function correctly
1303 * - Updated Audio Out demo to use timer 1 for AVRs lacking a timer 3 for the PWM output
1304 * - Fixed incorrect USB_DEV_OPT_HIGHSPEED entry in the Mass Storage device demo makefile
1305 * - Optimized Mass Storage demo for a little extra transfer speed
1306 * - Added LED indicators to the Keyboard demo for Caps Lock, Num Lock and Scroll Lock
1307 * - Added Endpoint_Read_Stream, Endpoint_Write_Stream, Pipe_Read_Stream and Pipe_Write_Stream functions
1308 * (including Big and Little Endian variants)
1309 * - Made Dataflash functions inline for speed, removed now empty Dataflash.c driver file
1310 * - Added new SetSystemClockPrescaler() macro (thanks to Joerg Wunsch)
1311 * - Fixed Endpoint_ClearStall() to function correctly on full USB controller AVRs (AT90USBXXX6/7)
1312 * - Endpoint_Setup_In_Clear() and Endpoint_Setup_Out_Clear() no longer set FIFOCON, in line with the
1313 * directives in the datasheet
1314 * - Fixed PLL prescaler defines for all AVR models and frequencies
1315 * - Fixed ENDPOINT_INT_IN and ENDPOINT_INT_OUT definitions
1316 * - Added interrupt driven keyboard and mouse device demos
1317 * - Combined USB_Device_ClearFeature and USB_Device_SetFeature requests into a single routine for code
1318 * size savings
1319 * - Added missing Pipe_GetCurrentPipe() macro to Pipe.h
1320 *
1321 *
1322 * \section Sec_ChangeLog130 Version 1.3.0 - Released March 7th 2008
1323 *
1324 * - Unnecessary control endpoint config removed from device mode
1325 * - Fixed device standard request interpreter accidentally processing some class-specific requests
1326 * - Added USE_RAM_DESCRIPTORS and USE_EEPROM_DESCRIPTORS compile time options to instruct the library
1327 * to use descriptors stored in RAM or EEPROM rather than flash memory
1328 * - All demos now disable watchdog on startup, in case it has been enabled by fuses or the bootloader
1329 * - USB_DEV_OPT_LOWSPEED option now works correctly
1330 * - Added ability to set the USB options statically for a binary size reduction via the USE_STATIC_OPTIONS
1331 * compile time define
1332 * - USB_Init no longer takes a Mode parameter if compiled for a USB device with no host mode option, or
1333 * if forced to a particular mode via the USB_HOST_ONLY or USB_DEVICE_ONLY compile time options
1334 * - USB_Init no longer takes an Options parameter if options statically configured by USE_STATIC_OPTIONS
1335 * - Endpoint_Ignore_* and Pipe_Ignore_* made smaller by making the dummy variable non-volatile so that the
1336 * compiler can throw away the result more efficiently
1337 * - Added in an optional GroupID value to each scheduler entry, so that groups of tasks can once again be
1338 * controlled by the new Scheduler_SetGroupTaskMode() routine
1339 * - Added support for AT90USB162 and AT90USB82 AVR models
1340 * - Added support for the STK525 and STK526 boards
1341 * - Added support for custom board drivers to be supplied by selecting the board type as BOARD_USER, and
1342 * placing board drivers in {Application Directory}/Board/
1343 * - PLL is now stopped and USB clock is frozen when detached from host in device mode, to save power
1344 * - Joystick defines are now in synch with the schematics - orientation will be rotated for the USBKEY
1345 * - Fixed USB_DEV_IsUSBSuspended() - now checks the correct register
1346 * - Fixed data transfers to devices when in host mode
1347 * - Renamed USB_DEV_OPT_HIGHSPEED to USB_DEV_OPT_FULLSPEED and USB_HOST_IsDeviceHighSpeed() to
1348 * USB_HOST_IsDeviceFullSpeed() to be in line with the official USB speed names (to avoid confusion with
1349 * the real high speed mode, which is unavailable on the USB AVRs)
1350 *
1351 *
1352 * \section Sec_ChangeLog120 Version 1.2.0 - Released February 4th, 2008
1353 *
1354 * - Added USB_DeviceEnumerationComplete event for host mode
1355 * - Added new Scheduler_Init routine to prepare the scheduler, so that tasks can be started and
1356 * stopped before the scheduler has been started (via Scheduler_Start)
1357 * - Connection events in both Device and Host mode are now interrupt-driven, allowing the USB management
1358 * task to be stopped when the USB is not connected to a host or device
1359 * - All demos updated to stop the USB task when not in use via the appropriate USB events
1360 * - Mass Storage Host demo application updated to function correctly with all USB flash disks
1361 * - Mass Storage Host demo application now prints out the capacity and number of LUNs in the attached
1362 * device, and prints the first block as hexadecimal numbers rather than ASCII characters
1363 * - Endpoint and Pipe clearing routines now clear the Endpoint/Pipe interrupt and status flags
1364 * - Shifted error handling code in the host enum state machine to a single block, to reduce code complexity
1365 * - Added in DESCRIPTOR_TYPE, DESCRIPTOR_SIZE and DESCRIPTOR_CAST macros to make config descriptor processing
1366 * clearer in USB hosts and DESCRIPTOR_ADDRESS for convenience in USB devices
1367 * - Added in alloca macro to common.h, in case the user is using an old version of avr-lib-c missing the macro
1368 *
1369 *
1370 * \section Sec_ChangeLog130 Version 1.1.0 - Released January 25th 2008
1371 *
1372 * - Fixed DCONNI interrupt being enabled accidentally after a USB reset
1373 * - Fixed DDISCI interrupt not being disabled when a device is not connected
1374 * - Added workaround for powerless pull-up devices causing false disconnect interrupts
1375 * - Added USB_DeviceEnumerationFailed event for Host mode
1376 * - AVR_HOST_GetDeviceConfigDescriptor routine no longer modifies ConfigSizePtr if a valid buffer
1377 * pointer is passed
1378 * - Added ALLOCABLE_BYTES to DynAlloc, and added code to make the size of key storage variables
1379 * dependant on size of memory parameters passed in via the user project's makefile
1380 * - Fixed incorrect device reset routine being called in USBTask
1381 * - Devices which do not connect within the standard 300mS are now supported
1382 * - Removed incorrect ATTR_PURE from Scheduler_SetTaskMode(), which was preventing tasks from being
1383 * started/stopped, as well as USB_InitTaskPointer(), which was breaking dual device/host USB projects
1384 * - Changed scheduler to use the task name rather than IDs for setting the task mode, eliminating the
1385 * need to have a task ID list
1386 * - ID transition interrupt now raises the appropriate device/host disconnect event if device attached
1387 * - Fixed double VBUS change (and VBUS -) event when detaching in device mode
1388 * - Added ability to disable ANSI terminal codes by the defining of DISABLE_TERMINAL_CODES in makefile
1389 * - Removed return from ConfigurePipe and ConfigureEndpoint functions - use Pipe_IsConfigured() and
1390 * Endpoint_IsConfigured() after calling the config functions to determine success
1391 */
1392